Suffers from "another doll does the same thing she does but better" syndrome hard, because that better doll is the 2-star Nagant revolver (which you have no excuse for not being able to get) who gets a mod to provide offense AND defense, while VP70's just defense with a +hit formation buff. Glock 17, MP443 and TEC-9 are also things. Basically, she's unremarkable and other things exist. Also IOP needs to stop experimenting with T-doll spines.

The weirdo, mildly creepy sweet potato. Honestly one of Waterkuma's better designs too. All sorts of adorable and frankly, the best shields you can get. Full party, 42-point shields, with stat buffs if the shield survives. The big thing is she can shield the whole echelon unconditionally, which helps massively for certain attacks like Doppel missile swarms, and can even negate them entirely with a bit of luck, or if you're using FP debuffers. As a result, she's a vital component of many weird teams purpose-built to kill some cheese enemies.

Farm your damned boxes and get her.

Modded version of M1911

A really expensive trash cleaner.

Basically when she pops smoke, she then goes Alvin York and blasts away 7 times for extra damage, hitting the farthest enemy and working her way closer to the front with every shot. If there are no closer enemies, she just keeps shooting that one until someone else has gotten closer (either because its dead and thus a new thing is closer, or something ran ahead of it).

Note that while the skill has an ICD of 1 second, she doesn't actually start blasting away until 3 seconds in due to the throw animation.

I really want to say something good but the closest thing to a real merit that I can think of is "voiced by Ayako Kawasumi." She's basically a 3 star inferior version of P7 with an... "interesting" shape buff and less used than the cat nun. You are likely to be flooded with cat nuns in your eventual quest for Stetchkin. Also, sends you to jail.

Has a kind of an unfocused buffs that... kinda sorta benefit things? She doesn't greatly benefit any lineups, really, and you can get more usable 2 star handguns honestly. Can maybe replace the cat nun in the meme Welrod/Makarov/P7 lineup, but people don't actually use that formation seriously for the most part. Really better off as cores.

Maybe one day she'll have a cool mod.

Welrodski! ...By which I mean she's basically Welrod but 3 star, with lower numbers and an aura that wants her in the middle (or front works too). Usable if you lack Welrod and honestly not actually bad, but HG builds are cheap and she's pretty common so she might get annoying to get eventually. Also her -acc skill stacks with Welrod, and can be combined with a +evade skill for silliness.

Her mod has other uses and is quite interesting, see her mod entry here

MANNERS MAKETH MAN. Very good aura for DPS, and very widely used. As a bonus, she has a very good skill for tanking, and can actually be used as a tank for bamboo spear formations or helping other tanks. She has 40% base crit unlike other handguns (a trait shared with other single-shot pistols like Contender and Thunder .50.) so a suppressor is actually pretty beneficial on her, not that you have other much choice in the matter. But yes, you will be finding use for her. Note that her -acc skill does stack MULTIPLICATIVELY with other acc debuffers.

Her mod keeps her relevant well into higher difficulty content. See info on that here

Catgirl nuns should be met with fire. Honestly has some use but.. you are likely better off with someone else, due to her aura shape forcing you to push her to the side to give your tanks evade and kind of unflattering aura in general compared to other 4*s. Probably better as cores but she does have her uses. For example, combined with Welrod and Makarov, the +evade/-acc combo does funny things to enemy hitrates (though its impossible to reduce hitchance to zero). Niche, but you may find some use for such things.

MURRICA. Usable but not as good as Nagant. Has a smoke bomb (unique among handguns) but the %s arent as high due to 2 star.

Her mod has a completely separate entry.