Van Alstine Synergy amps: Are they quality sound?

I bought myself a new AVA Synergy 450 for XMAS, it much outclassed the Odyssey amp I was using, very dynamic and enables me to hear every line in the Symphonic music I primarily listen to. My biggest complaint is cheap plastic speaker terminals placed in tight space pretty much limits you to banana plugs.
To be honest one reason I bought it was I live an hour away from AVA so no shipping required if I do need service.
I would never buy an amp rated at 4 ohms, which his cheapest model is as Maggies will smoke them.
Reviews are a function of advertising in the mags that review, AVA is running a few adds lately,so getting a few reviews, I noticed his FET 600 rated top of class by TAS.
Frank himself has said Synergy 450 sounds as good as that in many setups.

Never buy an amp that is not rated stable to 2 ohms, many speakers go below 4 ohms, can become unstable and blow a channel etc.

I have had a Synergy 450 for 2 years, first time in 40 years I haven't been looking for a different amp.
Sounds like a high-quality 100 watt tube amp using NOS output tubes better than any currently available.
Easily betters the Hafler, Odyssey, Belles, McCormack and Quad amps I used before.