I test drove one the other day.. VERY nice.. brakes are a bit on the heavy side, but I think it has to do with the six-piston calipers.. lol. Otherwise.. beatiful ride, and it looks 100% better in person too; just be careful if you're any taller than like 6'4" - my bf had an issue with the drivers-side; He fit comfortably as a passenger, but when you're in driving position, he had to put the seat too far back to fit in right. But it fits me perfectly.. in fact i have to move the seat further forward..lol - [5'4"]
oh, and the baser-model is no slouch either; it feels like a BMW, just like the 135; careful with both though, you're up to speed before you know it

-- i tested an opted out one with all 4 'packages' except navi. (which MSRP [give or take dealer markup] was around 40k)
they had a couple new M3's out there too.. everybody was hoarding around them, so i took the 135 for a spin.. i love it, i want one.. but i need money first. lol.