It's okay.
The design is great.  The frame is good.  The mobility guards broke after the first week.  It would lock during my normal walking which was irritating. The straps got thinner exposing the velcro to my skin.  It might work well for people with skinny legs, but for a big thigh guy like me, it did not hold up.  I would not purchase it again unless the improve the straps and the motion limit.
Rating: 3 stars