I have used Cyclotren and Monsterdrol separately, and without a doubt recommend Monsterdrol. Strength went up substantially with minimal sides (Lethargy and some sort joints for me). It is a STRONG compound. You will need a full PCT.
I am one of the few who cannot fully endorse Cyclotren. I didn't see the results others have, and discontinued use about 2/3 of the way through my planned cycle. I am definitely one of the few, though, so take it for what it's worth.