I am a very large person and had trouble finding a scooter to rent for our up coming trip.
I tried the ones you talked about but i found one better. /www.scootorlando.com they are not on the Disney kick back plan. They seem to be more thorough and their scooters are powered more and the scooters they rent will last 12-15 hours of straight use or more. Which is better then the ones i used in Sea World i went through 4 in one day and universal i went through 1.