I'm well satisfied with this scooter. I only have 2/3rds of a heart, It only pumps at 35-40% so it doesn't supply enough oxygen for me to be able to walk more than 50 or 60 yards then I have to rest for 8-10 minutes before I can go another 50 or 60 yards. I'm currently residing at Jefferson Barracks VA Medical facility for the next 4-6 months being treated for PTSD and Traumatic Brain Injury. This is a large campus and this scooter has given me freedom I haven't experienced in 7 years. I can't bring it inside the hospital to charge it so the removable battery is ideal. Thanks for such a good product.