i can understand why people don't like primo. the price but also the results come slow.. if you've run tren then you might be annoyed and impatient with primo.
on tren ace i started noticing strength and size gains within 4 days. and my strength gains just keep going and going each time i go to the gym. i'm stronger everytime.. with primo i didn't see any difference until weeks 2-3 and it was very small. overall I did add 3/4 inch to my biceps. another thing about primo is the molecular weight of the substance makes for frequent and painful injections.. its very thick stuff. it really would get on my nerves, but tren injections hurt as well.