I've always loved TTVJ- none of the 'crazy marketing' of some of the other more commercially-oriented companies around here, and great street cred with the Pete Millet tie-up.
My TTVJ MHP is still one of my favourites for what it offers (tubeyyyyyyyy midrange), although it's clearly a few generations behind the current portable amps for technical performance.
The Apex Glacier has not disappointed me either. Coming from other more musical, darker amps, it gave me a shock and sounded thin at first. But I soon started to enjoy its unmatched clarity and speed. I can really see what Pete Millet meant by upgrading the power supply. This basically gives a cleaner, faster signal- not unlike how moving from copper to silver (a better conductor) gives a cleaner, faster sound with potentially less bass and more brightness.
This is the amp version of a silver wire, imho. Few other amps sound like this, so I'm really loving it so far for what it adds to my amp collection.