I just got mine in today, and am still undecided. I will play with it this weekend and see what I think. I'm coming from an RTR Grip Frame with Hogue palm swells, so it is quite a change.
I don't use a stock with my Phantom, but initially I feel I could really get in tight and have the marker close to my body while still being decently comfortable, if that makes any sense. I look forward to trying it out in game and seeing which one I like better.