Razg is correct in being concerned with the sides, but the same could be said for pretty much anything, your not going to know until you try it.
One guy I know competed earlier this year and used tren enanth, he thought it was the best thing he'd ever used and so went to his supplier and bought 50 10ml bottles! He said he didn't want to run out and wanted to know they were all from the same batch as the one he'd tried as it was so good.
Everyone I know who have used it have thought it to be fantastic.
Not a bad choice nick but I'd advise stacking it with primo, or boldenone.
www.extremenutrition.co.uk