Among the too many amps I have is a Virtue 2 with the top-of-the-line PS from Virtue.
It is an amazingly good piece of gear for the price, and - yes, sounding cliche and stupid - REALLY DOES outclass a lot of equipment 2-3x the price. It is the best sounding Tripath implementation I've heard (I've had or heard 4 or 5 others).
On a personal level, I still like my DIY Hypex amp better, though even as a DIY piece it was twice as expensive as the Virtue (so one can imagine what the equivalient retail might be).
My Virtue 2 is sitting unused right now, but each time I DO put it in temporarily, I'm reminded how good it is.
I'm tempted to try the battery PS for it that GR-Research offers, just not a priority right now.....