Since no one else has given you any input (that is experience with electric scooter) - here's my 2¢ .....
I know this is NOT the same thing, but it is close enough IMHO to give a small bit of input - -
I purchased a ZAP for my bicycle about four years ago - this is a electric motor that you add to the rear wheel of your bicycle to "assist" / power - - -
I won't go into details - but the bottom line on the product was that is did just HALF of the claimed range and time - thus it said eight miles (very lucky to get 3 miles) - speed 15 mph,
mebbe 8 mph - and the big disappointment was that it would not go up a major incline (even had a neighbor 12 year old try and it wouldn't get him up the hill) - - - so it sits in my garage (mebbe it's time to clean it up and ebay it
) - - -
Side notes - yes I am a BIG GUY, so I did not expect the max, but I was disappointed with
it. It was worth the learning experience (I did buy it new on eBay on a dealer going out of biz - so I didn't pay the current price) - -
So while the price is "affordable"
I would suggest being prepared for HALF of the claims - and "if" that is acceptable to you and your needs, then go for it - otherwise I would suggest, do like Ron suggested and go with a Honda Scooter - we have had an Honda Elite, Honda Reflex, and a Honda Silverwing - all MUCH more money ($183 vs $1849 starting and then UP) BUT well worth every penny in what they will do.