I really want one. I bought an Umarex CO2 one but it didn't function right. Ergonomically and aesthetically i really liked it and still want one. There's an Umarex green gas one i'm tempted by.
I've only been in it for about 3 months but have found everyone friendly and pleasant that i've met and spoken to at games.
While i don't know any of those people outside of that yet, i'm sure it happens enough.
Maybe the crap ones are cheap to run so they're more resilient, but the good sites have higher running costs and more susceptible to market/financial issues.