Mu buddy just received one (dmr) today. I haven't have a chance to check it out yet but I own a G&P MK14 Mod 1 (EBR). It is an awesome gun. The range, with a lil' treak, is incredible.
The G&P DMR my buddy bought from 1 of the retailer in Canada is, in my opinion, pretty well priced. It's cheaper than if u buy a M14 and then buy the stock to do the mod. The internal of the G&P is pretty good already so there isn't much u need to do except maybe a TB and better hop up rubber.
It's nice when u can nail people so far away that they either dun see u or their gun just can't reach u
