I've done it - but I came from a hypog, metabolic syndrome. Coming from that, it was like meth to a half dead body.
Now that I'm healthy enough to cycle, my first tren run was real low dose. A 300mg / ml bottle I brewed, so 3 grams. I did 100mg a week of tren e- so my cost was like 20$ or something. I got 10x the results of gw run at 1/4 the cost.
Gw isn't nearly as effective if you don't have some serious fucked up issues to correct, and I know because I have tried every reputable rc company since then looking for that fire it had when I was ill, and I've never found it since.