I am toying with getting one as the old tread iron is getting hard work and although my knee was replaced a couple of years ago it does play up if I overdo it and go to far from home.
There are so many with different size batteries, motors, charging rates etc that it gets confusing when you try to make a choice. There is only one shop over here with prices starting over a grand a time. So I'll have to buy one online which will be untried and unseen. It has got to be right first time. One thing I do know is, it has got to have 26" wheels.