First, I have checked the reviews on BSM and they are good... I am just unsure how much I can trust ratings given how hard vendors (rightfully) push for 5s. A couple reviews said his stealth has been a little off lately, perhaps due to high volume. Anybody order from him lately?
I just placed my second order with confidence. IMO it is very good stealth, at least on the first package I got via USPS priority mail. Confident that if the package was damaged and opened, USPS would not be suspicious of the contents. Vendor page says something about Express flat rate packaging and implies to me that its a bit less awesome for stealth, so I stick with Priority.
I got in on the memorial day sale: +10% Another one coming June 15th (I think, check the vendor page)
Vendor page also says "rate us how you really feel, as long as you provide a good reason for why you feel that way" and states that the only thing that will be held against you is if you wait for auto-finalize and don't leave feedback.
Way prefer this vendor compared to my last cola vendor who definitely scores lower on: cost, stealth, product quality, communication ... so pretty much everything.