LOVE it. It's very clean sounding. The MB Quarts sound very nice too. The tweets are stout, I had to back them down a bit between 8k-12k on my eq settings.
I have the Van Gogh model- got it for an excellent price and it makes plenty of power for my SQ system. The downfire box sounds excellent as well- very clean bass.
I love my head unit, but it's starting to show it's age. (Premier DEH-P930) I'm thinking of pulling it and getting something new. I want to keep the same control as the Premier though, so I need something with at least 13 band eq, custom delay times so I can adjust the soundstage, etc. How are those Excelon units for audio?