I have had Regulator R-01 two days now. I am not qualified to say much else, than that I like it. I wish it was smaller (than 41mm) though.
Glashütte has a very similar regulator, which hasn't been replicated as far as I know. I am happier with a genuine Perpetual anyway.
Good communication from the manufacturer, choice of strap colours and fast shipping.
http://www.perpetual-watch.com/regulator.html