Been through many microbrands but never kept any of them long. Not had one in years apart from a Newmark 52 which is a classic design. Most of them are a mess design wise. Also a lot of them are overpriced, all depending on how much the owner wants to line their pockets. Which is fair enough but I'm not contributing to their BMI for a 4R or 90 powered £500 cookie cutter sub homage with a silly name and a fruit bowl dial. Thankfully for them there are daft people that buy into their shtick who think they are getting exclusively and also a sense of community via brand support.
Eddie does it mostly right reviving classic designs and occasionally adding a modern twist like the PRS40.
As mentioned I think Ewan (Newmark) is getting it right too.
Kemmner was another one.
Some Chinese based ones are pretty good too like Helson and Armida who already have some modern day classics like the Shark Diver, and are usually available all year round. Then there's Steinhart of course.
All the ones like Zelos, NTH, Halios etc I don't care for.