I'm not addicted but that's because I built the non-addiction perks
Yup psycho jet turn the impossible fight with several bunch of assautron (1 hit kill pc at Survival)
Never use any chem aside Survival difficulty.
I do not use chems on Survival mode. I sell them
Only use it when I messed up and the enemy is right in my face. I do love me some psycho though, lasts much longer, and the female PC voice is hilarious.