Ya gotta handle one, in person, in order to really make your mind up.
I ordered mine sight unseen last year, I've had it since last October, and I really like it. It's lightweight, I think it feels good in the hands and on the shoulder, and it shoots about as accurately as a run-of-the-mill, rack-grade AR15. I particularly enjoy its quick handling and its performance in snap-shooting drills. Reliability is excellent as long as good ammo and mags are used, and I REALLY appreciate the clean-shooting gas-piston system - cleanups are lots easier and lots less frequent.
Most of the AR180B-haters I've seen here and elsewhere don't like the rifle because it's mostly plastic and feels flimsy to them, or because they think it's not priced low enough for them to consider buying it instead of their favorite brand of AR15. That's why I say, handle it first in person. If the rifle disappoints you and you pay for it anyway, you'll never be satisfied with it. On the other hand, if you like the way the rifle looks and feels in the gun store, I think you'll like the rifle even better once you take it out of the store and to the range.