I did his 50 watt Boutikit. It’s a cool amp. It’s based off a 2204. Single input, additional jack for a footswitch for a solo volume boost. Amps front end has some mods to give it a bit more gain than a bog stock 2204 and tweaks to the EQ. Also has a resonance knob and 4 additional switches: tight (low end shift/HPF), Mid shift, bright switch and gain boost/cut (it’s more of a cut. When the switch is on it cuts gain. When it’s off it’s full gain. Part of the extra gain comes from not having a cold clipper and bypassing the V2A cathode). Also has a tube buffered effects loop.
There’s a 20 watt and a 50 watt. The 50 of course runs on EL34s. The 20 is 6V6 based. Different transformers in the 20 and 50 also. Tonally they’re very similar. When I did my class a couple guys did the 20 and we A/B’ed them. Volume and headroom aside, the 20 didn’t give up much to the 50 tonally. If you’re able to do the class, I highly recommend it.
To the other question, Bruce is highly regarded because he designed a lot. Dave Friedman considers him a friend and mentor. They worked together on a few things. Bruce came up with the modular stuff that eventually got picked up by Randall with their MTS line. His IE4 preamp formed the basis for what would be the TOL amps he did - first himself and later with Rocktron. And to be honest the modular stuff was the next step from that. The Egnater brand was primarily built in China based on his designs but essentially GC/Musicians Friend were the ones funding the line so hence the build issues. They had some cool ideas and as long as the amps work, they can sound great. When I did my amp class he also had been working with Steve Fryette and Friedman on the synergy platform. Hence the backwards compatibility with older modules. Also since he designed the original modular setup, they wanted him involved in helping with design of the current Synergy product. He’s also a super nice guy and likes to help out and share knowledge where he can.