I ordered a Bogger DNA20D non-bottom feed on April 28th (cold feet bout getting a bottom-feed), an hour after placing my order I purchased the Mini Bottom-Feed (18500) Bogger Box and received it today.
I've used it ~60 minutes now and I'm happy. I connected a Bridgeless 510 1.5 Ohm Atty, filled the bottle and began vaping, I'm getting very good Vapor & Flavor off the fresh battery.
The fit & finish is excellent, the door is virtually seamless, and it uses to small magnets to secure it. Removing & replacing the door takes a bit of force, the door fits tightly to the frame, the wiring is neatly run along the inside seam of the Mod, neatly soldered & secured. It is a tight fit for the battery & bottle, but there is no chance of anything working loose, it's a really beautiful looking piece of Art.
As far as the durability factor, I don't think I'll be playing catch, swimming with it or using it while participating in a Sporting Activity. Unless I drop it, it should hold up just as well as a Metal Mod which can dent or scratch just as easily as the Bogger, look at some of the used REOs in the Classys.
I like the Bottom-Feed system (I'm kicking myself over the DNA20D) and plan on adding the DNA20D Bottom-Feed in the near future.