idk i have a friend that was on it and had great results and it is low in sides from what iv read
Bro, that's what you call extensive research?
Bottom line with Sustanon is that in order to achieve it's full effect, you have to inject yourself every day, or every other day. Also, when you run a cycle (that should ALWAYS include test) you want to keep your test levels even.
It's easy to do so with a compound that has just one ester. Sustanon has several different esters that all work at different times causing your test levels to fluctuate up and down if you do not administer it ED/EOD.
Where as a test such as enanthate (one ester), can be injected 2X a week, keeping your test levels even, letting you recover quicker and easier, and yielding more/better gains. Most first timers would rather pin 2X a week rather than every day.
You are far better off using enan or cyp. Actually, I'd take any test over Sustanon. You might also want to look up "Sustanon Flu".
Some guys use Sustanon to frontload. Reason being that it has a short acting ester (prop) and it works really quick. Me, I'd rather use prop and or dbol to front. So you might see someone run a test enan cycle, but for the first two weeks, he is also taking Sustanon along side it. He would be better fronting with prop, but as I said earlier...Sustanon has been easier to come by at most pharmacies. Now, cyp is widely used, especially for HRT and is available at most pharmacies. Prop is harder to obtain.
I could go on and on why I dislike Sustanon. I'm not saying it doesn't work and it's "BAD", there are just far better options to pick from, especially for a first time user. And lastly, you will experience more sides from Sustanon (if any) than any other basic form of test. Good luck!
/V