I digged a little and found a buyer on eBay who was willing to share his experience.
Here is his quoted response.
I have some very mixed feedback about this bike. I has some
really quality components but also some serious flaws.
1) tyres are
completely unacceptable they will need to be replaced. i had 3 punctures in
a week the bike is just too heavy for the mountain bike tyres it comes
2)The battery is exactly what i expected - it is already beyond
its best. this is not a surprise. HOWEVER it still works with about 60-80%
of the power it had at first. I think it has stabilised and it will
continue power the bike for ages without getting much worse, but after the
first 3 or 4 discharges it really doesn't like *full* throttle. This is a
problem with LiPo batteries in general and only a bit worse than what i
would expect from a good quality one.
3) Motor is great. no
4)gears are great and good quality.
5)brakes are great,
high quality. they don't stop as hard as would be nice but an expert has
assured me that is a leverage issue in all electric bikes due to the need
for a motor cutoff switch in the handles.
I would say that I don't
regret the purchase. it has been a pain in the ass, but even with tyres etc
it is still at least $1000 cheaper than a comparable bike bought