Car handles like a dream with the diff and coilover combo. Would be a whole lot better if I could shell out on a H&R anti-roll bar an polybushes but as it stands it's a real hoot out on track (see vid link). Even as standard it's not too shabby, I think they're great little handlers.
Added a picture of the seats to the previous post as well. People seem to love seeing them and they're my fave addition!
http://www.youtube.com/watch?v=J-bvK_WDh58