Yeah, the IROs are worth their money and then some. In fact, the only negative thing I've heard (or read) was someone complaining about someone at IRO not getting back to them about shipping times as quickly as they wanted them to. With that in mind, I say go get one.
I love my pista, I also have a trek 5200 carbon and I am loving the pista more and more each day. I really cant find a problem, if you live in brooklyn like I do, you might get some flack for being a "hipster" but thats ok, If you dont like the paint, get a good paint job from a good powdercoat place!
Presto NJS build, Specialized Allez Pro w/ full Dura Ace and Ksyrium SLs, 1990something Specialized Sirrus
IMO, don't trade a Bianchi for an IRO. I'm sure many will disagree here, but Bianchi has so much experience in quality manufacturing. IROs are supposed to be nice, but your bike now is a Bianchi, it doesn't really get much better...