I've actually had a fun time with it. P4 Golden has brought nothing but a smile to my face while I've been playing it, and as expected, the music is great too.
SFxTK has Gallery Mode (A Sound Test, Cutscene Viewer, and AR Mode), the characters that I wanted so bad in the PS3 version, and a Burst Kumite mode (So much fun!!). It even lets you play your own music (like the PS3 version) if you prefer.
On another note, I finally got Ultra Street Fighter IV, and have been playing with Rolento, Yun, and Ryu (Ramen Shop/Alternate Costume 3) too much.
Thanks for all of the recommendations guys, I'm actually planning on getting LBP Vita, BlazBlue EX, and the MGS Collection for Vita, to name a few.
---------------
As for P4:DaN, I have mixed feelings, I know it's a great game, and it plays beautifully, but I feel it lacks a bit in content (only 27 initial songs, not including DLC). I'll probably end up buying it anyways though.