It is also a giant pain in the ass. So far it's the only thing I seriously dislike about this scooter; you can't see into it as you're gassing up, so there's no telling when you're getting close to full...not until gas gushes out. There is a drain port (you can't see it in the picture...it's just a tiny hole) so area around the gas cap doesn't stay full, but still... I have yet to get gas without overfilling.
Since it's so low on the scooter, I can't even look at the meter to see how much gas I'm pumping. I tried looking up, thinking I would slow to a trickle when I hit 2.2 gallons, but it was too awkward.
There's got to be a better way, I just haven't figured it out yet.