pretty good stacking steroid, add 300-400mg/week to 500mg/week of test and you'll be ready to rock. It will add some bloat, but doesn't aromatize as much as test - the water retention won't be aesthetically pleasing while you're on, but it will make your workouts a lot more comfortable - I'm a fan of deca in low doses added to a low dose of EQ - its a secret little stack author l rea was quite fond of, and I've personally enjoyed as well (with 500mg/week test as the base).
I wouldn't run it alone as the progesterone buildup will kill sex drive, shut you down quite hard, and make recovery a ***** - also progesterone related gyno is a *****. In generally, without test, you will feel like death by week 6 or 7.