I too was unfamiliar with the brand. Local dealer close to me in Western PA got me hooked. I picked up their ACRH-3 integrated amp. It is an impressive piece. The build quality is excellent, it's powerful and very easy to listen to. I wouldn't hesitate to buy Margules again. I've understood their speakers are excellent.
I've read that Margules is one of the oldest audio brands in he world, both pro and home.
Agree with @simonmoon in that the phono section of my integrated is a real winner. No need for an outboard phono pre-amp.