MagneTrainer-ER Mini Exercise Bike Arm and Leg Exerciser

I GOT THIS MACHINE I HAVE A BAD BACK,, THIS IS GREAT I GET EXERCISE AN A WORK OUT,,,, WITH OUT MOVING MY LOWER BACK.. I LAY FLAT ON FLOOR, SUPPORT MY BACK THIS IS THE ONLY KIND I CAN USE .I JUST LOVE IT .. IF I RIDE A REAL BIKE OR ONE THE HAS A SEAT ON IT!!!!!!!! . I 'M IN TO MUCH PAIN.,.,., I HOPE THIS WILL HELP SOMEONE WITH LOW BACK PAIN IT THE BEST ... MY WIFE LIKES IT . SHE CAN WINE DOWN ON THE COMPUTER AFTER WORK,, WITH THIS BABY SIT UNDER THE COMPUTER DESK THIS IS NOT JUST ANOTHER EXERCISE BIKE ,, THIS IS A THERAPY CYCLE CAN USE ON ARM THAT A BO NICE

I only had this Magnetrainer for about 17 days but I am very impressed with the quality. The bearings and mechanical dynamics are "smooth as silk". The MagneTrainer helps me burn some calories while watching TV. It is also great to exercise the triceps by pedaling with my arms for a few minutes. Con: It can have sliding issues that are annoying unless you take the time to creatively brace the MagneTrainer. I mechanically locked it into the legs of my desk and then Chained it to my office chair. If done right it can prevent the sliding problems, but I wish someone could create a light weight adjustable framework that could lock and unlock the MagneTrainer to my office chair. Conclusion: Even with the sliding issues, I believe that it is the best of it's kind, and well worth the money.