Finally I found a chair that will work for me. It feels safe, it's well made, and it goes smoothly. I don't always have to use it, but when I have used it it has performed well.UPDATE! I brought this on our vacation to Los Cabos and I can't say enough about how awesome this chair was. It performed perfectly!There were several long and steep ramps that I had to climb to get to the restaurants that were elevated (so you can get an ocean view) and this chair handled it like a champ. We were there 2 weeks and never had a single problem. It went well through the airports and was easy to fold down. You have to remove the battery to fly, but the company sends you a really nice bag to carry it in, and you just use it like a regular carry-on. This company thought of everything.I was in the chair for long periods of time and it was comfortable. I just can't say enough about this chair and it's performance. I had two other power sheelchairs prior to this and this was by far the best! And the cost roughly the same amount so it's a great buy.