I bought one about 2 years ago...It failed shortly after I bought it, and I sent it back. Roger sent me a new amp as he was waiting for a part . The new one failed a bit later , and back it went again.
It runs warm at idle, which I was surprised about, as owners and reviewers commented on how cool it ran. One of my cats loves to sleep on it, as it is like a heated bed!
When operating, it tends to be very warm, and when I listen loudly, it is so hot you can't hold your hand on it for long.
Roger told me that it was being overdriven, as I have Magnepan 3.7's and he stated they are very inefficient, which is so.
I've since turned down the volume, and so far no issues, but the shipping cost for repairs tends to balance out he great price, as does being without an amp for a few weeks.
I love the sound, and have even considered the mono blocks...should it fail again, I'm sure I would discuss other options with Roger.
He stands behind his product, surely.
If it's a QC issue, then maybe my ownership will be shorter than I planned.
A tough call.