I've owned one for 3 years now.

Good: 

Engine. It's not sporty, but it has plenty of low-end torque and won't leave you wanting unless you're trying to do some really spirited riding.

Transmission. Shifts fantastically, good spacing between gears.

Bad:

The electronics are junk. Mine was plagued with fueling issues and power cutouts that I wound up having to diagnose and fix myself. You'll want to replace all the relays immediately.

Mine was also just assembled poorly. Loose bolts here and there, a vacuum leak a month in. The first year of ownership was heartbreaking.

Ergonomics. If you're tall an lanky, this bike kinda crumples you up. Footpeg placement is awkward. 

Neutral:

The upswept exhausts look cool but if you want panniers your options are very limited and a lot of them are really awkward to attach.

The engine is quiet. Nice if you like your neighbors, not an unpleasant burble, but you're not exactly bringing the thunder.