Just outstanding. I attend a lot of comic/game/sci-fi conventions as part of my "night job", and PhxCC is one of the very best...and it seems to get better every year! The guests are really impressive, they have tons of really interesting panels, and their vendor floor...it's tough on the wallet, there's just so much neat stuff!
One thing I really enjoyed was the HUGE area given over to games in the adjacent Hyatt Hotel. Board games, role-playing games, wargames - all were readily available to check out with lots of table space and always a few friendly faces looking to join a game. I've been to the con every year since 2009 and it's always a high point of the year. It's become a real high point of the year for my daughter and I, and I can't wait for 2015!