Those who are leaving good reviews obviously havn't tried to cash out a significant amount from their account. According to their site, a withdraw should fund within 10 days. I have a pending withdraw as of 12/23/2011 and still nothing. Additionally, I have 4 customer service requests regarding this issue that have been blatantly ignored. THIS SITE IS A SCAM! They have no problem taking your money to fund a player account but somehow forget how to refund it back (read all the other complaints on their customer support help section on both Skill Addiction and the new site, Skillville Games).
I urge everyone who has been scammed by this site to file complaints with the FTC, your State's AG's Office and the FBI's IC3 Unit. Us who are victims should at the very least get our initial deposits back.