Hey man,
Not really much else to say.
It's a nice little supplement. You can take them (pill or liquid version) at about 30mg-50mg for dose and than you're good to go in about an hour (they say sooner, but my experience has been about an hour to have it kick in).
You don't get an erection until you have some sort of sexual stimulus, so you don't walk around with wood 24/7 when you've taken it.
It also really cuts down on the refractory period, so you can get up and go again in about 5 min (for me..).
I've also found that I can do at it a LOT longer before climax vs. not using it. So for those long weekends when you want to screw like a bunny, go for it.
Hit me up on PM if you want a couple of sites to purch.
WA