Well I have been hearing all kinds of great things about Callaway's Apex, and Apex Pro irons.
I went to Golf Galaxy to demo them. Holy motha batman! They both felt like butter. Really good feeling, solid, and good looking clubs. I couldn't really tell a difference in feeling between them on center hits. But the regular Apex were a bit more forgiving on mishits (my miss is usually on the toe). And I was hitting them an average of 10 yards longer than my AP2 712s.
Look, I'm big Titleist guy, and have Titleist clubs for the last 15 years or so. My AP2s were great when hit in the sweet spot, but mishits felt pretty bad, specially on the toe.
So I ended up selling my AP2 712s, and I just custom ordered a set of Apex 4-PW with Project X 5.5 shafts. No upcharge for custom shafts! Titleist charged me $110 for custom shafts.
I should have them in a couple of weeks, and I'll update this thread after I receive them and play them on the course.