dynosaurNot this bag in particular, no, but I've only heard / read good things about the company - both products and service.
http://properashell.com/2013/10/02/proper-customer-service/
Also, a quick Google search tells me that the Halley Stevensons fabrics are top-quality. - http://www.waxedcotton.com/content.php?id=4
It HAS to be good if they take that much pride in what they produce. Plus, Massdrop usually has very good quality products, so I'm not too concerned about quality - I'm sure this will be worth it.