My only two cyles were deca. First cycle Aus-vet, 200; put on 21lbs, kept 15. No side effects, ever.
Second cycle, TT 300; put on 20+ lbs; but got very bloated, and added 6 inches to my waist. The strength gains were incredible, but after this cycle, lots of catrdio and dieting to lose my stomach.
I think that the fatty build up around my waist was from lack of anti-e's. Used yohimburn with heavy cardio and I'm back to a 32" waist.
My next cycle will be T400 with TT deca and Arimidex. Overall, deca is great!