Everyone is different, one may love deca/hate tren or vice versa. Depends on your body chemistry. For me Deca didn't treat me very well, had me emotional, weird thoughts, libido was "ok" but not crazy. On Tren, I feel amazing (low dose <200mg/week on blasts), libido is something of an animal, I have a more carefree attitude and not emotional about stupid things, strength is great, and the look is even better. Far superior to Deca in my opinion.
Now if I go above 200mg on Tren I do start to experience the negative sides such as. Acid reflux(worst side effect IMO), toxic feeling overall, sweat in a 65 degree house, etc. In the past these sides would kick in about week 5 for me at like 450-500mg, that's when it's hard to decide to stick with it or cease taking it. In low doses however I could run it year round. Which I am kind of doing but only at a very low dose..
Also, masteron or proviron do seem to help with some of the sides. I take 25mg of proviron a day split in two doses. And usually don't even need an AI.
So my advice is stick with Test at like 500mg/week