I like the P-07. I don't own one, but if I was in the market for a semi-compact polymer 9MM, that is what I'd buy. However, my PCR fills that role nicely.
Recently, I did get the chance to shoot the polymer framed SP-01 Phantom, next to the steel framed SP-01 Shadow, and still preferred the steel framed SP-01 over the polymer. The grip just felt better to me, and the gun wasn't top heavy. That being said, the polymer framed Phantom SHOT GREAT, and I would not hesitate to own or carry one.