I can recomend it!
I have one. Works great and wasn't too expensive. When you're on the bike, you don't feel the bag. It easy to remove the upper part to fill the bike.
The only negative is, that if you want to remove everything (also the support) you'll need about 5 min.
You can use the bag also as a "normal" backbag.
I think there are two different models for the Hypermotard. One with a big and one with a small see throu case on the top (for paper maps or for GPS navigation).

(by famsa.it)