If you live in an area with lots of hills, one of these seems like it would be cool to have. I believe you can adjust the assist level so you could set it up to give you just enough help to get up hills that may be brutal or force you off the bike otherwise, and just use leg power on flats and down hill. May allow a person to get to destinations on their bike they may otherwise never get to experience. Just have to resist the temptation to use it as a scooter so you still get exercise
