I received a GMT Master II Asian Clone ETA 2836 from Marvellous Replica a couple of months ago and am very pleased with it. It ran about 15 seconds fast at first, but I bought the Kello app and was able to regulate it so it's about +5 sec/day. The bracelet was not very smooth at first, but I soaked it in WD40 and that made a noticeable improvement. The bezel has a little slack to it, but it's not bad--only about 1/2 minute counter clockwise. Also, the lack of AR on the cyclops makes the date a little hard for me to read sometimes.
The flaw on this particular watch is the lume on the minute hand. The factory put a blue hand instead of a green one. My plan is to have the entire watch re-lumed some day. Luckily, out of site, out of mind so I don't notice it most of the time. A lume shot was not one of my requests during the QC process--but this is my first rep and I've learned--and am still learning!