Fina is definately worth it! The side effects are overated by far. The only problems I ever have on it (I runs heafty doses, and I don't cycle) are acne and difficulty reaching an orgasim. The acne can be solved by tanning a couple of times a week and showering twice a day. The sexual side effects are not consistent, and at the very least you will be #1 in her book after you screw her for several hours without a break. Usually a little test and/or proviron can go a long way towards solving this problem if it becomes unbearable. I'm not certain of what you are refering to when you say "scary shit".
The benefits of tren? 1) its very cheap, easy to make, and can be aquired legally.
2) the strength gains are unbelievable. I'm 5'9" at 220 ibs and incline 405, deadlift 675 (with wraps), leg press 1500, preacher curl 165, etc all for reps.
3) if your diet is clean you can stay under 10% bodyfat while making great gains on tren
4) the lean mass gains (if you take the water and fat gains out of the equation) are easily comperable with test or d-bol
5) as long as you don't stack it with high side-effect drugs, the side effects from tren are virtually non-existant.
That being said... do when even need to ask the question, "is tren worth it?"