I've used their 9mm and 45ACP ammo before with no issues. I bought ammo from the when they were still selling remanufactured ammo - since then I believe they only sell new ammo.
It's good stuff IMO - you can catch free shipping, etc if you subscribe to their email alerts.
Back when they had the groupon, I bought a large order of 223. Keep in mind they ran into problems with their distributor when this happened. They shipped me several boxes of the wrong 223 (I ordered 55 grain, they sent me several boxes of v-max in 55 grain boxes) and I had some problems with their ammo reliably detonating.
I have shot a couple of hundred rounds of 55 gr v-max and to say I am satisfied would be an understatement. This is almost flawless ammo and they were reloads.
They never had it back in stock after I made that purchase, but I always wanted to buy more. I should have got on their list as your friend had.
I bought some .45 when Gearhog had 50% off promotion a couple years ago. Mostly good, had 2 rounds out of 500 that wouldn't feed, on inspection, they were visibly longer.
Never tried again, only due to shipping is normally outrageous, @ least last time I looked.
That's just about all I have ever shot thru my glock 22 and have never had an issue. Put it thru a couple other 40 cals w/o issues either. Good quality ammo