Rental scooters are popular in downtown San Jose, it is Silicon Valley after all. I tried one on my way back to my Airbnb. It was $3 with a $1 off "give it a try" promo.
It was fast, the speedometer claimed 11 mph. And the app was easy to use: download, scan code on the scooter, and take off. I don't remember the distance nor time limit it gave me but I only used a fraction of it. I'll do it again if I have the option. It'd be fun with the family or friends on a vacation. Here's a screenshot of the app: