GREAT PIECE! I've played it, and I absolutely love it. I see it as pseudo-Prokofiev, having a less in-your-face sarcasm, and a generally more romantic feel.
I recommend the Horowitz recording; the only other I've heard was Moiseiwitsch, but I really dislike it.
PM me, I can send you my recording of it.
BTW, I've never heard the other two, I'm curious what they're like.