Feature:
None except bag. But as bags go it's a good one

Quality:
Excelent definetly good enough for the road. If you look after it it will last you for years on end!

Value:
It's a bit expensive bnone the less a great speaker.

Desirability:
It looks great realy professional when your at clubs or bars.

Sound:
I have used it and sounds great the only thing that bothered me was that in very large areas it needed more speakers to help it give the punch it neede. I have used it on several ocassions it sounds great and from my expirence using I'll be getting one soon.

Ease of Use:
It's practicly plug and play. But if you cant plug it into a multi socket it trips. Also very large and extremly heavy so it's unpractical in that sense. But easy because it's powered.

Support:
Never dealt with qsc.

Overall:
Unless I become huge I can see no reasons to upgrade ever! Excelent speaker looks great and sounds it. I used many speakers in my life and this is by far the best. Thanks QSC cant wait to see wats comming next. If your a touring rock band DJ or installed sound you will love this speaker.