Awe.. I hate to see you discount them completely.

I would still buy a designer item from them (I'm eyeing a Balenciaga for later lol).
I just wouldn't trust their authentication service.
You can always ask the gals on the appropriate board here to take a look and/or use a paid service after you receive your item,
They would have to take it back & refund if a paid service deemed the item inauthentic.
There's some great deals there- and on authentic merchandise. It's just the same as any other site Tradesy, Ebay and so on, we must do our due diligence as buyers and verify authenticity.