It does look pretty. I will admit, I do want it. Come to think of it, I'm a little annoyed with the advanced switch on the Edirol. When in SONAR, I have to switch it to advanced, but just for normal activities, it runs best in normal as if I'm playing movies or music through normal programs, it stutters every now and then. So it's a bit of a hassle having to unplug and refresh every time I switch back and forth. The quad capture doesn't have this button so I guess it's not an issue.
Also not having a dedicated headphone switch in the Edirol is very annoying - which the Quad Caputre has fixed.
As for latency, I can get 1-2ms and stable. So I'm pretty happy with that!
Next time I make a purchase I'll go something like an 8-Pre which I can daizy chain for future advancements if I want to move to 16 ins. The Octa-Caputre looks quite nice. Or maybe a Motu 8 Pre.