Feature:
It's a cabinet... aside from the casters what else would you need? Does have some well placed grips on the sides though, so if you would rather carry 85lbs around rather than roll it you can with ease.

Quality:
Got mine used, for a fraction of the price... and despite the price cut and the alleged "cosmetic flaw" I really haven't seen any issues with the quality at all. Very solid sound, great punch(supports 4ohm input) and I looked this thing up and down and haven't found a mark on it. For something used it sure looks pretty. ;)

Value:
For the price I paid, and the amount of cabs I have played through... the value can't really be beat. I was always partial to Crate's heads and cabs but Ibanez stole my heart with this beast.

Desirability:
I own it. I have no problem just jamming alone for hours with it.

Sound:
This cabinet outputs a LOT of sound at only 100w of power and it can actually max out at 640 watts. RMS is 320, max is 640... and I'm sure I would be deaf if I had a head that could push 300+ watts. 100 gets it plenty loud enough.

Ease of Use:
Plug it in, voila. It's the head that makes the difference in the long run. Use a Fender FM100H head on it and sounds pretty awesome regardless what settings I use.

Support:
Haven't had to call.

Overall:
Until I am making tons of money I will probably use this thing until it explodes, and then buy another one to replace it.