I am now a fan of Nelson-Rigg, these are a great product for value. Hard shell cases, heat protection underneath..adjustable for small to wide back seats. Not waterproof, but nothing some scotchguard/camp dry won't take care of. Very happy with these.
Got these bags for some added carrying space on my Kymco Super 8 150. I shopped around for a while for something that wouldn't be too big for the scoot. These saddlebags worked out really well. The fit wasn't perfect, but a little trial and error, and they work. Only mounting issue was that they cover the keyhole for the seat latch. I just mounted them with the rear strap on top of the seat, and unhook it when I need to open the seat, no problem.
The only disappointment was that the lids are open at the back, with just a velcro flap to hold them. If you ride in the rain, which I do quite often, you will definitely need to buy the optional rain covers. The need for rain covers is the only reason for deducting a star off the rating.
All in all, I am quite pleased with these saddlebags. I would absolutely recommend these for anyone who rides a small to midsize sport scooter.