I’ve bought from them before and they’re reliable.
Pripyat is an amazing game and should be bought by anyone with a passing interest in FPS and / or open world games. It does benefit from the Pripyat Complete mod over at ModDB though. So don’t go neglecting that. There are also Absolute Texture packs that, while included in Complete aren’t the most high res versions available. So get those too and install them over the top of Complete.