Never ever heard of them and I ve been into BTC for a long time. Why would you use such unknown exchange?
They have been around for a quite time. (
https://bitcointalk.org/index.php?topic=121862 )
Why I used them? I had Btc-e dollars and when I wanted to withdraw $4k I had to pay commission about $150. By using their service I payed less than $100 (IIRC about $80).
Does it worth to risk $4k dollars for $70? Well, it depends -I guess- , since I have already cashed out my initial money back years ago, I have no possibility to lose any of my invested money. So, for me it worthed. For someone else, I cannot say anything about them. However, If there are some -proved- problems about them, most probably I wont use again.