Moffitt did some nice work in the 2012 run to the playoffs; the Chicago win on the road in particular, the one where Sidney Rice caught the TD pass and then got hit after the catch and concussed and fumbled but the score was already in the books.
I watched that drive focusing on Moffitt, and he had some surprisingly good run blocks and pass pro in the two game-winning drives (one drive to tie and one to win). Honestly, I was looking at the film expecting to see Moffitt screw up, get blown off the line, etc., but that's not what I saw. If any O-Line gurus watched that drive and Moffitt in it, it would be great to hear their take.
I think Moffitt is a legit NFL journeyman lineman, no, probably not a Pro Bowler, but a legit pro, and I hope he does well in Philly. I expect he'll be a decent fit for them, make their roster, and if he stays healthy, play a good share of snaps for them. I suspect Moffitt's heart is in it now.