I got my sea legs and next thing you know, I'm hooked. If you are looking for an entry level bike to get started, this one may be tops. Cheap, reliable, ~90 mpg, goes 35 mph, is designed well and of course a lot of fun.
I wanted to go a little faster though after awhile. I wanted the ability to ride two. I wanted something that would not bog down on steep hills. Back to craigslist for an upgrade. This time I chose a Yamaha Vino 125cc. This one gets ~75 mpg on average (I'm hard on the acceleration), is still twist and go (no shifting) and goes 50 mph. It's not designed as well, nor as smooth as the Honda, but it's even more fun.
My confidence is up to 50 mpg now. Now it's time to lock into the perfect scooter for me. I'm saving up for an Aprilia Scarabeo, or the coolest of all, a Genuine Stella. Take a look, these are some sweet rides.The Aprilia has larger tire, more akin to a motorcycle. I think this would provide a smoother ride over the bumps and potholes of a typical city ride.
Trust me friends, there is no commute more fun than a scooter/motorcycle commute. Economical, cheap to maintain/operate, easier to park, you simply can't go wrong.