I'm still trying to put together my first impressions, but with about 2 hours of headtime, I'm pretty pleased so far... they're my first pair of Grados I've personally owned (only listened to the 60 before these 225)

Highs aren't as shrill out of the box as I thought they'd be, but I guess that was always a characteristic of the 225, huh?
I think I can comment on build quality, though. The cables are heavy duty, being very thick and robust. The bowls are a new type of pad for me... I actually think they're actually quite comfortable! ...the ES7/ESW10 must have prepared my ears for them :P But overall build quality is nice - The new 325 style shell looks great, if not a bit plasticky. Overall, the 225i seems very well built.