How do you feel about the clip being at the writing side of the pen? That's my only hesitation right now, as I kind of wrap my fingers around my Pilot Metropolitan—but that pen is really narrow, so I don't know if I'd hold a VP that way.
Personally, I always tended towards a kind of clawed/tense pen grip and had been working on correcting it. I find the VP gently reminds me how to hold it properly, and it's very comfy to use. Due to that clip, the VP works best for people with a conventional grip or quite close to it. I would definitely recommend getting your hands on one first if you can (I know of like one fountain pen store close to me so this might be a tall order), especially if you know that you hold your pen in an unusual way. It absolutely would be irritating for a subset of writers.
I'm not sure how well it would work for lefties either, as there is a lot more variety in how left-handed folks have adapted to use fountain pens comfortably and avoid smearing etc.