I purchased the Phoenix 99608 to rehab my knee injured a few months ago. It’s great! I couldn’t ask for more features – they’re easy to read and easy to set up. However, setting up the machine itself wasn’t so easy. The holes on the seat back weren’t aligned properly so it was a real task to install the back. The machine is quite heavy too, so if you can’t lift a lot I’ll be glad to send my 15 year old grandson over to set up your bike too! Operation was a bit noisy a first but some 409 strategically placed as directed in the instruction manual took care of that.