I checked out both the scion and the subaru versions yesterday at the ny show. I havent read this thread so pardon me if i am repeating obvious stuff, but these are thoughts from someone who hadn't seen much on the cars before.
The outside looks great, it's definitely an attractive car; sort of a mix of the genesis coupe and the 370z. The interior was hit and miss. I wasnt a big fan of either center console - the scion was unimpressive, and while i liked the subaru's better, the gear like buttons were kind of toy-like. The GTI center console is definitely a class above. I was impressed by the touchscreen stereo on the scion though (brz had a base stereo), it looked good and was more responsive than the one on my gti.
The backseat is obviously a joke, unless you're only friends with leg-less midgets, but the trunk was a decent size. The thing that bothered me, though, was this hollow piece of plastic running across the dash/glove compartment that was painted like carbon fiber on the scion. Terrible. It should be removed, but it was painted grey on the subaru, which made it more palatable. I hope it comes in non-carbon fiber options on the scion. Interestingly, the interior on the subie was grey with red stitching in the exact same colors as the gti.
Obviously how it drives is key, which is difficult to do in a car that doesn't turn on and is parked inside a building, but seeing it in person left me with mixed feelings.