We always rent an
ECV for my mom through Walker's Mobility. They are great. They don't charge your card until the night before you arrive, the ECV will be waiting for you at baggage services, and at the end of the trip, just drop it back off at baggage services for them to pick up. Walker's also gives you a discount if you need one for more than 7 days and depending on what time of the day you are picking it up and dropping it off. We rent one for my mom for 9 days and it is usually around $260.00.
Just FYI: Randy's and Care Medical also gets good reviews, but with Randy's you must be there when he delivers it. The other companies just leave it in luggage services with your name on it. I'd definitely rent one from offsite. It would be much cheaper, plus they'd have the ECV to use at the resort and DTD. Plus the ones from offsite are easier drive and less bulky than the ones they have at the parks. If they are not used to using them, be sure to take them to
WalMart or somewhere to practice. They may have trouble backing them onto the buses. (I know my mom did her first time


). If so then as long as they can transfer, anyone in your party can back them on for them. I swear the only time my mom had trouble that first trip was backing onto some of the buses, but she quickly learned to just slow down and take her time. She has no trouble with them now and she never uses an ECV, except at WDW. I had to talk her into using one for her first trip, but now as soon as we start planning a trip, she throws a fit for me to go ahead and reserve her ECV. In fact, she's going down there with us in Dec and insisted I reserve her ECV a few weeks ago. She was sitting right next to me when I called, and was telling me to ask for a red one and make sure it had a headlight. As I tried to hush her and tell her the color didn't matter, the lady at Walker's started laughing, said no problem, and they'd make
sure she got a red one and to assure my mom that all their ECVs now have headlights. lol