Feature:
Built in preamps can't replace real vacuum tube preamps, but hey... Comes with Mackie Tracktion, a brilliant piece of SW

Quality:
All in all: very good. Sturdy feel to it. Here's the flaw: The line I/O. They're physically placed to close to each other (problem if you use pro jacks), and they're of the typical consumer type with no washer restraints. In a permanent installation, this isn't an issue, though. There is room for improvement with the headset out as well, one should be able to switch whether to monitor ch. 1+2 or 3+4 in a recording situation, or at least ch. 1+2 should be muted if the headset is connected.

Value:
Awesome hardware at a ridiculous cost.

Desirability:
It's good looking IMHO... the jack-thing is a bit of a turnoff, tho...

Sound:
Very smooth indeed! On all accounts. Plug and Play. Good converters. Good for vocals, guitars, bass... I've used it in several settings with no problems.

Ease of Use:
Plug and Play.

Support:
Support via email. Fast and helpfull.

Overall:
I'll only want to replace this beauty if I should be so lucky as to find my self with more room, so I could record drums. Then, I'd need more inputs. I used to own an AudioFire12...

Feature:
They're fine. What you'd expect.

Quality:
Best in this price range. If you have an extra $200 you could get the Apogee I suppose. But the preamps are pretty quiet and its held up under daily use for about 9 months so far.

Value:
Best $300 I ever spent. Seriously. No guitar etc. has improved my life as much as this baby.

Desirability:
It's nice. Could always use more blinking lights and brushed aluminum.

Sound:
A/D conversion is clean and accurate. I have come across a few hiccups when it didn't seem to translate quite perfectly, but such examples are few and far between. However, I am blown away by the D/A convertion! I plug this thing into my macbook pro and listen to the few CDs I have remaining because with this and a good pair of headphones the difference between mp3 and CD is night and day.

Ease of Use:
Plug in to your FW port and go (usually...). When it doesn't you do it again and it always works the 2nd time.

Support:
Haven't used it. But zzounds returns are easy enough.

Overall:
Never once have I been dissapointed with this. And I am always dissapointed by something or other with all my gear. Also this is the only piece of equipment I have used that I thought I must write a review to tell others! So get this. I live in queens and this was delivered to me next day with standard shipping. zzounds rocks.