Deca is an excellent drug, but most people never see its potential beacuse they either don't take enough, don't do it long enough, don't stack it with something androgenic, or they don't eat enough while on it.
Deca will cause big strength and size gains when combined with an androgenic steroid, D-bol, AD50, Test, etc.... Eat, Eat, Eat, take in lots of protein and you can't help but grow on Deca. Plus the joint, ligamen and tendon soothing is a great bonus.