First of all, Sydney Atkins was great. Very helpful, knowledgeable and friendly. Customer tech support was very helpful and always available to help. The Biones cuff works, its that simple. It does take time to get used to and you may have to try different positions to get the full effect. Alot goes into on how its gonna work for you. Muscle fatigue, correct positioning, keeping the unit charged and contact pad wet, all have a factor on making your drop lift and move forward. You need to be patient so you can achieve it's maximum support. All that being said, I totally recommend the Bioness cuff.