Whenever I first test ride a scooter, I usually make sure to turn off the cruise control feature (if it has one), because I ride in urban environments where I'm not coasting for very long, and need to be able to quickly react to changes in traffic.
I also like to ride uninterrupted as I'm checking out the brakes and seeing how it feels up/down hills.
@Tormod is right, cruise control is a useful feature, and I should use it more to see if it's a feature I can't live without.
Do you use cruise control?