A fantastic design from Darkglass, this overdrive distortion is extremely versatile. It works extremely well at low gain settings, adding quite a "tube amp" style growl to my ears, opening up to thunderous but very usable high gain distortion sounds when you crank it, with more mid scooped, thundering sounds on the omega side and more mid and treble present snarling sounds from the alpha. These two different drive sides work extremely well together blended.
My one issue has been that the footswitch has begun to fail over time, occasionally double switching on a single stomp. It should be pretty easy to fix for me but the footswitch design used (at least in the revision of the pedal I got) is somewhat prone to this sort of failure, I've had the same type of switch fail in the same way in other brands of pedal. For the money I would have hoped for a more durable design.
Overall I still recommend this pedal, if you want this drive sound there nothing else that sounds like it.