Let me preface this by saying the website and the services they provide are above standard. Professional and efficient.
However, from my experience, they lack proper vetting for their account sellers and not enough consumer protection. In my case, the account was retaken by the original owner and it seems to me it wasn't the only time this particular person did this. Because the original owner recalled their account the Accountwarehouse team had no chances of restoring my damages. And their lifetime warranty was not sufficient enough to cover my damages at all. As I think the account only grows in value with time and relative popularity of the game.
Thus, I am hesitant to recommend their services to anyone as both the customer and the website(service provider) have no way of enforcing the seller to abide by the "buy-sell agreement".
Overall 2/5:Bad