I actually think that it's better than the Segway for making you slightly shorter. One of the problems with the Segway is that the increased height (and width) makes you so conspicuous as to practically be flaunting your use of it, and how independent you are from the lowly ambulating masses.

Whereas someone riding a Vespa can still come off as cool. (Though they'll immediately look silly next to someone on a Harley.)