Oh god, .onion-site, Comic Sans Serif. Everything about this SCREAMS scammer. Why, oh why, would anyone send money to a site like that?
I wouldn't say it screams 'scammer' ..but it definitely is a fishy place to go.
OP, is there any particular reason you chose to do business with them compared to more a reputable company like Mt. Gox (or even BTC-e)?