Well my cousin bought one about 3 months ago and I drove it around one evening the week after they bought it.
So here is my mini-review:

It was fun to drive in a "gimmicky" kind of way.
Suspension/handling was nice and it was not as slow as I anticipated.
As small as it is, there was actually some room and I am 6-2.
The instramentation was placed in a few odd positions and I didnt really like all the toggle switches.
That being said, I wouldnt ever buy one, as the novelty would wear off soon and I would realize I bought a go-kart on steriods.

Again thats just my opinion, no offense to anyone that owns one.
My cousin loves her mini.