Yeah, I have. Several times recently, in fact. It's decently strong and cheap - 175 for a ball, but, I think it's cut with ephedra or some such. Good euphoria but a little jittery. Had vasoconstriction issues at the end of the night. I even acetone washed it and got a good amount back. But, still pretty decent for the price.
Im working on a full scale review, but in short:
Its the best coke you're gonna get for that price point. doesnt pretend to be anything it isnt (he lists it as 60%, if i remember correctly, and it blows a lot of '80-90%' bags out of the water). in the past he's mentioned possible ephedrine cuts but i dont think his current batch has ephedrine. hes probably active on here somewhere, and will probably show up to this thread sooner or later.
numbing comes on slow and takes a while to fade. high lasts a long time (maybe 45 min between lines), not fiendy. will clog your nose up the next morning tho, so go heavy with the saline, and i find it makes me sneeze a bit more than i would expect. but that could just be me or my allergies. i found it great for boofing as well. comedown has a bit more anxiety than i would like. hard to say if thats the coke or my body, because itd been a while since i skiied when i tried it.
easily my second fav coke that ive had on the market (but admittedly, the coke market aint what it used to be), and by far the cheapest. i would expect to pay 75-80 for a g of comparable quality, and the highest quality i've sampled was well into the hundreds. moreover, the doc is known for good stealth and good service-- ive never had a bad product from him yet and ive tried a large range. overall, i recommend him, in part for quality, but he scores MAJOR points for being reliable and consistent.
you might have better luck over on the cocaine sub. /d/coke