Yeah ive tried many of their supplements, my favourite was Androsol, that stuff rocked!!! Looking back I feel sorry for my girlfriend at the time. I dont think she was ready for the increase in Libio
I've had some negative experiences too though. MAG-10 made me feel as sick as a dog for some reason and TRIBEX didnt do a hell of a lot.
Now i just stick to Spike (my new baby). It focuses my mind really well.
Biotest needs to allow other online methods of payment as i dont have a credit card (or ever will want one) and you cant pay with paypal.
This means I cant buy direct and have to pay more through a distributor. This extra cost has sent me elsewhere sometimes.