I fly an AXN Clouds Fly which is relatively easy to get in the UK from numerous stockists. I bought the RTF from HK 6 months ago and it was a toss up between the Bixler and the AXN.
The Bixler has space on its side and hence allows you to carry a bigger battery and more kit, however IMHO, the AXN looks sexier.
I can get around 20-30 mins flight time from a single 2200mAh in my AXN carrying a pan/tilt, two cameras, VTx, StormOSD and current sensor as well as the obvious ESC and motor.
I've also managed to roll my AXN now with some success and a bit more tweaking and I think I'll be able to get really good results. Some airframes (not sure about the Bixler) simply won't roll properly so check that out if you fancy a bit of a play in the sky.
The AXN (with standard prop, motor and ESC) is a tad faster than the original Bixler too.