Ive had bone grafts and titanium stents in both feet, so I make sure to keep the supported. I did find a review online that said they were not smooth and the reviewer was right according to my hearing! The sound quality is just superb and even at full volume theres no distortion. I ordered based on all the reviews on here, but it does not fit my Lexus NX200T?it is too wide. This is a great replacement mouse for a very low price. There are so many videos available online showing the same problem and Logitech warranty service is very poor in India, there call center number is switched off. This is a great affordable option for an indoor bike trainer with multiple levels of magnetic resistance. I also use Orthotics for other shoes and when I needed a new orthotic I figured if the Birkenstocks work why wouldn?t the Birkenstock insoles. The unit itself is not communicating with the CAM software. Very highly recommended!