I just returned from 4 nts at Sports with my brother-in-law who uses a scooter. We had a HA room with roll-in shower than was on the third floor of Bldg 1. Even though it was the height of spring break (the week following Easter), the resort didn't seem super busy, and we enjoyed the location near the pool.
I thought the beds were very comfortable -- nobody in our party had any complaints in that area. I just wish the park hours would have let me sleep in more!
It's so easy to use Disney transportation with a scooter. It may not be as easy to get a cab that will accommodate one if you decide to go with that plan, or be sure to make a request for a taxi van that will accommodate the scooter and be sure to ask if there is an extra charge. Might not be, but it doesn't hurt to ask (we haven't used a HA taxi so wouldn't know).
I've stayed in all levels of resorts at WDW and this stay at Sports was actually one of my favorites. The location was quiet, we were so close to the food court and it had a lot of variety and options (a great hand-dipped ice cream counter with milkshakes for example). It was a quick ride to any of the parks. I had always heard horror stories about the values -- and there were a lot of spots teams and teen groups staying there -- but we didn't experience any of the negatives people talk about.