Has anyone used them?

I'm taking my mom to Disney the first week of December. We used Randy's last time she went to Disney and they were great. We aren't going for a full week this time. Mom wanted to just rent a scooter at WDW as needed but the prices are CRAZY. $45 a day plus a $20 deposit. And you aren't guaranteed that they will have one. Anyway, I went online and did some searching. Apple Scooter, for a 5 day rental, is $133 total and they drop and pick up for free.

I LOVE the price, just wondering if anyone else had used them or shall my mom be the guinea pig?