It's the brakes that are the biggest problem as standard.
The really are shocking.
Stage 1 level of tune should be able to get into the very high 12s if you have no mechanical sympathy, but whilst rolling, there's not really a lot in it from say 40-110 between that and a stage 3 cossie.
Handles pretty nicely, rocket off the line.
Four years we've had one with no issues bar a split clutch hose.
I love driving it - really good fun!