I have some but have yet to ever run it. It seems from feedback that m-drol is one of the (if not, THE) best superdrol clone. Do a google search and you'll find out it can provide some significant results, however sides are real and likely. A friend of mine did m-drol bridged with phera-plex and blew up before my eyes over 5 weeks. I couldn't believe his gains. After PCT he kept around 6 solid pounds. He didn't seem to have any major sides either. He had bloodwork for a physical (no test check), and his liver vaues were slightly elevated. He only ran Novadex XT and Liv.52 for PCT (which was not nearly enough), and seemed to do fine.
Personally, if I were to run it, I would do a maximum of 3 weeks at only 10 mgs per day. It's just too toxic IMHO to run at high doses. Following the 3 weeks I would run something like Primoridial's test recovery stack, and a low dose serm. A low dose serm might not even be necessary, but it is always good practice to have one on hand.
All I can say is to read and plan plenty if you decide to run it.