I thought about this for about two weeks. I tried a lot of amps in the 5w to 15w range. I wanted something small that sounded good at low volume but loud enough for small gigs and a some clean headroom. This fit the bill and then some. I've owned a lot of tube amps over the years (Mesas, Fenders, Marshalls, etc.). I have to say this is possibly the best sounding amp I've ever owned. I switched the Chinese tubes to 2 Tung-Sol 12AX7s and a NOS Sylvania 6L6GC U.S.A. replacing the 6V6 and increasing the HR.
Things I like:
Hand wired eyelet board construction.
F/X loop
Adjustable wattage attenuation (1/2 watt to 6 watts).
6 or 3 watt switch.
Lows are controlled by an 11 position Depth switch which seems to boost the mids as it rolls off the lows.
Texture switch (3 position) rolls off some highs (very subtle).
Foot-switchable Boost (very useful).
According to VHT you can swap any large socket power tube (6L6, 6V6, EL34).
Things I don't like:
To switch from the Clean ch to the high gain Ultra ch you have to plug into the Ultra input. You can not use an A/B box because one input cuts off the other. Not a big deal for me but could be for some.
The real PITA for me is that even though it has jacks for extension cab switchable to 4,8 and 16 ohms, to unplug the internal speaker you must remove the back panel. I think I'll remove the wire mesh that covers the central portion of the back panel for easy access.
This amp is about the biggest amp in this class. Also the loudest.