I hate to be a downer but I'm not a big fan of the P-rocket line. The xpg version was one of the first lights I paid more than 20 for. I was amazed with it when I first got it. Good build quality, great output, and a decent output. The thing is, once I got into p60 hosts, more specifically solarforce, I had no use for it.
For the same price you can get a L2p, which is type 3 anodized, infinitely upgradeable, and customizable. If you look in the right places you can get custom built dropins, which utilize the same driver, for $25+.
So it's not that these are bad lights or have huge flaws, more so that there's better value lights with similar or better specs than them.