If you want to stack armor, she's one of the best for it, with one of the highest base armor among shotguns. That combined with her skill, she can easily hit some insane armor thresholds, making her take 1 damage (zero with flash rounds) where other shotguns can struggle. This does come at a price of having her HP be on the lower end of shotguns.

However, there are now plenty of other options at this point in the game that can produce similar, but better results. That doesn't make her trash, but yeah. Still usable.

The other shotgun besides KSG that has +Armor skills. Has higher HP and really good armor, but has an offtank aura meant for 2-shotgun formations which means you'll either need to move her every fight or have another shotgun. The aura effect is less flexible than a firepower buff, but potentially useful buff to a lot of MGs like M2HB or PK who could really use an acc boost. Regardless, If the primary consideration is just sheer defensive power, she makes an decent pick.

CAPTAIN CHINNNAAAAA! Surprisingly good for a free unit. Has the lowest armor among the shotguns (tied with Super Shorty), but she will get you started considering how easy it is to get her. Aura optimized for 1SG/1HG/3MG setups, and works well with Mk23 and M2HB (which are both given for free to new players too). Has a very tiny 3-shot magazine compared to the usual 4 most SGs get which limits her firepower somewhat, but her skill offsets this a bit. A flawed unit and not a first pick for many lineups, but most SGs are interchangeable as far as front-row tanks go anyway, even if she's not as good at it as the other ones you'll get eventually. Her main merits are a decent aura shape and being free.

She does have a mod which...kinda makes her better? Will add that article soon...probably.

Called "The Northern Hemispheres" for fairly obvious reasons. Somehow, someone decided "Featherlight" clearly means "biggest tits on a t-doll possible." Her skill lets her do a bit of damage except you dont care about that sort of thing on a shotgun and its not like the skill has time to trigger on a typical fight (most SGs dont get to use their skills anyway). Still, well... she's a shotgun with 22 base armour. This puts her ahead of the lower end shotties like supershorty.

Despite having the lowest armor among the shotguns (tied with Captain China), her skill offsets this a bit. Also has the lowest HP among the 4 star shotguns though, but whatever, she can still take hits. Her main downside is the shitty aura, but she can at least do the job of eating hits.

A really shitty aura, average armor for a shotty. Prolly the worst shotgun currently available on EN except shotguns are wanted for their tanking ability or else you'd have picked literally anything else. With the release of SAT8 & company, she's even less useful, but hey, if you don't have anything else, she'll still do

Her mod, which makes her not dogshit, can be found in this article

AKA, SHARK-CHAN. Shitty aura shape, workable buff. Has surprisingly high HP for a 3 star shotty, and surprisingly ok damage, otherwise average tanking ability. With the release of better SGs, you'll want better if you can, but all shotguns are at least usable if you lack anything better.

Her unique makes her slightly better offensively, but still far away from being actually good at it, and 90% of the time you want your shotguns to tank.

MURRICAN SHOTGUN. The most usable aura of the 3 star shotguns currently on EN, though forcing her to be in an offtank position. 21 armor and a +armor skill. There's really not much to say about most of the shotguns besides "they'll do work if you really want them to."

Also a better catgun than IDW. IDWSG DA NYA.

She also has a mod, and the review for that can be found here.

She's still usable and good enough to deal with older content just fine, but the new shotguns currently available just blow her out of the water so hard. Sad day to be a pizzalion.

That skill happens to be giving your entire front row a 35HP shield, that takes armour into account first. It also has 5/8 uptime. Basically, if your SGs took scratch damage before? They should take literally nil now, unless its a really major fight or you were silly enough to go fight anti-armour enemies.

Unlike the other shotguns, she's focused on firepower instead, with her skill basically making her go DAKKADAKKADAKKA. You would want an Acc scope on her so she can actually hit anything. Sometimes used in 1SG/1HG/3MG formations to provide MAXIMUM FIREPOWER. Tiles are a little eh for that though. Armour is average.

Usable I guess? Really, one of the lower end shotguns, but she can still tank. Just not a first choice when you now have actual choice in shotgun variety. Doesn't do anything badly, but doesn't really excel either. Does have decent offtank tiles though, if you want to run 2SG.

She has good stats. But shotgun powercreep is real. Also if you have her, you've been playing a long time. Why don't you have a better shotgun? Huh? Waifu? No, she's shit. Get over it.

On top of that she has a nuke skill that... honestly doesnt usually come up, but when it does, it's pretty much the biggest nuke on a shotgun you get (2 hits for 8x vs primary, 12x area around primary). As a bonus, if the first shot kills the primary, the secondary BOOM changes targets (uses standard grenade targeting). Note that due to her ammo and reload speeds, if you want to fire the first nuke immediately, you will likely need to reload cancel her.

Aka M1887. She's a shotgun, so she will do shotgun things shotgun-y (read: facetank with her armour), but is not particularly impressive at it. Her stats are okay (but worse than most other 5* shotguns), her tile buffs are the weakest of all 5* shotties (and most 4*!)… and her skill is downright useless, because it has a ridiculously long 15 second cooldown and if you can use it appropriately, well shotguns aren't what you want to use for that fight.

As far as free SGs are concerned, a minor upgrade over 97S if you don't consider 97s's mod.

The Queen of Gluttons, and reason you lock up your ration storage. If you get -MRE tiles on random nodes, don't believe the fake news, its just a cover for her breaking into your food stores. No seriously, all her damned lines are related to food, EVEN HER OATH LINE.

Actually has a really nice skill but has fairly average stats. Her skill doesn't work with slugs, only further highlighting how shit slugs are. Her defenses are actually not as good as some of the others, but she has good offensive stats (for a shotgun). Basically a direct upgrade to unmodded Type-97.

A Heavy Cruiser from Kantai collection that got lost somewhere.

Not a superlative shotgun, but has a decent aura for 2SG formations where she wants to be in the 3 position, because 20% firepower is nice if you absolutely need a second shotgun and have no room for an HG. Her skill would be better if it didn't have such a godawful startup time. Like SPAS, her armour is not exceptional.