Feature:
The pack itself is built like a tank, beautifully padded, with tons of room, big compartments, small compartments, sturdy zippers... I've had it for almost five years, taken it to Italy, carried it on trains, planes...only major beef is that the shoulder straps are not as durable as the pack itself. One tore loose on one end (fortunately, the pack didn't fall). Admittedly, I had been carrying slung on that one shoulder for years and had tested its strength when I slung it onto that should. Now I carry it on the "fruit loop" at the top of the pack which looks like it will last 'til doomsday. The top zipper is fraying a little at one corner, but hey, nothing lasts forever. Have I gotten $70 usage out of it? Absolutely. I carry my Macbook, Mbox2, phones, iPod, mic, cables, books, CDs, El Gato Turbo, camcorder, papers...it has convenient side pockets to dump my change, wallet and keys in when I go through airport security...it's a great product.

Sound:
N/A

Ease of Use:
N/A

Feature:
There's ONLY enough room for the Oxygen 8/Ozone, a laptop, misc. cables, and an audio inteface OR your AC Adapters. NOTHING else! No room for headphones or anything. So you're either running off of AC power using your internal 2 minute latency sound card or you'll be running off of battery power for your gig.

Quality:
It's made of balastic nylon. You can't even cut it with a plastic knife.

Value:
Just buy one of those nice Targus backpacks to store your laptop and stuff in, then just buy the Oxygen 8 Gig Bag, the one that only stores the Oxygen 8/Ozone

Desirability:
Looks pretty cool.

Sound:
The zippers make cool noises.

Support:
I've never had to use it, so i'm giving it a 5.

Overall:
I definitely will be looking at the Edirol PCR-M30/Gig bag setup. Oxygen 8's are CRAP. I shouldn't have sold my PCR-50, nice keyboard but a little big.