IMO the biggest advantage of a scooter over a motorcycle is weather protection. On many scoots you will stay pretty dry even in the rain as long as you can keep moving thanks to the leg shields that extend all the way down to become floorboards.
The things I don't like about the new maxi scooters is the CVT, all the plastic, and the seating position. I prefer to be able to control the RPM at any given speed rather than be stuck at whatever the CVT rollers are set for. Paying hundreds of dollars to replace a piece of plastic that breaks when the scoot is knocked over is a no go for me. Until they make an all metal scooter with a manual transmission and upright seating position I'll stick with motorcycles.
For many years I rode an old Vespa Rally 200 both as a commuter and long distance tourer. I've also done many long tours on a CX500 and a GL1000. Except for the limited power, the Vespa was my favorite.