Huh. I recently upgraded to premium for group video and didn't have issues. shrug They've had random issues with their site in the past to be sure, and maybe i've been luxky, but I haven't encountered them recently.
Not unusable maybe, but not exactly what I'd consider usable either. It's a cool concept, but it seems to be missing the point that a bike is a simple machine... it's way over-complicating things (the steering being the main thing). I don't think this thing would be fun to ride, unless you only ride in straight lines... again, cool concept, but not practical.