i'm on week 2 of it, 600mg/week for 10 weeks. it's definately top notch primo. i love it. best experience this far using primo. but i never went over 400mg/week in the past. just starting prop, tren and proviron also.
I've had great luck going with Primo from UG labs. Fraction of the price for the same stuff.
On the other hand there are allot of guys that have been scammed by UG's but if you are worried about the wallet, it's a great way to go and usually about half the price
Just my $0.02