I dunno, never heard of them myself but good for them trying to tap that market.  They accept payment in BTC & DOGE so at least they're supporting their own cause.  Some of the components look overpriced (the Hyper 212 cpu cooler) but others are pretty fair (the additional GPU, $5 extra for a 1TB drive).  Plus they've got the Lifetime Warranty in effect which is something you always pay extra for.  Guessing that's about $3-400 of the upfront cost.  That's not saying anything about how their warranty process is when/if you need to use it.