I've had a lot experience of these - my dad had one for 4 years which i often drove. I chased him around France over two weeks, at the time in my Z3M. It sounded mega, looked really cool and actually i liked it a-lot. With the Z3M in the right power range there was next to no difference in acceleration though.
It wasn't the finished article in driver experiencee and the gearbox had its limits which is ultimately why he changed it for a 981S Boxster but it was a great car that got a lot of attention and the engine more than made up for it.
I approve!