I actually think that Momo's singing is pretty versatile compared to most in the group. Well, maybe it's not her singing but the way she expresses her feelings in the songs. Like from Gag to Jiriri to Waracchaou to Natsu Remember you, she sounds different in each song to me.
When i listen to Matsuu's songs, I always think "I hope Momo can sing like this someday." Since they always compare her to Matsuu (saying she gives them the same vibe as the early days Matsuu), so I want her to be able to sing like that, too. But think about it again, Momo has so many factors against that. It's not just skills or strength that can be develope either, its' something hard to fix. She has this lisp and she's pretty nasal. Different from Miki or Goto to me, hers is like she's having some allergy or something. Lots of time she sounds like she's having a cold. Dunno if it's like natural or if she really has allergy.
She also has a weird accent, weird ways to pronounce some words. Her n, t, r get mixed up a lot and she always pronounce ~n as u.
I wonder if she can play a bit. Maybe know a few chords? Music is her favourite subject anyway.