We all know DD makes some pretty solid products. They also have a line of amps that would fit perfect in my install with VERY limited space (when disposable income becomes available again...got myself on a short leash right now with play money). Been eyeing this beast and it would be perfect with the matching 1000 watt mono amp. Just wanting to get more clean power to the front stage. And I like running stuff different from the forum favorites at the time when different products makes sense for the install.
http://ddaudio.com/products/amplifiers/d-series/d6-500/
I've heard class d amps sound amazing and I've heard them sound terrible in my install. It's just a topology that seems like a company either gets right or screws up royally. I thought about bridging my current Helix G-Five to my midbass and giving the d4.100 a try on the midrange and tweets just to get a feel for the sound signature in the lineup.

So, anyone have any experience with these amps or know someone trustworthy who has?