Awesome case for one or two GoPros and some mounts!
Smatree produces some really nice products. I own a couple of their battery kits and picked up this case as a more organized option for traveling -- previously all my stuff was just thrown into an old Lowepro bag I had.
I've always been impressed with the packaging of the Smatree products. Their stuff usually comes in a small custom fit cardboard box that holds everything inside nice and tight so you don't have any movement while shipping. For a case like this, that may not be a big deal, but for more sensitive electronics, it's a nice touch that is consistent amongst all the products I've ordered from them.
Once opened, immediately you can see and feel the hard shell of the case, and the quality of the materials used. I have no doubt the case will be able to withstand some abuse. Inside the case is the semi-soft EVA foam, which comes as one big piece with little bits strategically designed to be removed for your accessories. The foam is stiff and grippy, ensuring that should the case get bounced around a bit, your GoPro's will stay secure and safe.
Once you decide on the layout you want (Smatree provides a sheet with some configuration options so you don't have to go at it blindly), simply pop out the foam pieces and stick your accessories in. I have my case set up to hold two GoPro's, 8 batteries, and my most important accessories (tripod mount, frame, handle, some screws, one charger, roll bar mount, memory cards, j-hook, stickies, etc.). I will be carrying this case with my RollPro, which is another awesome product that I love.
Overall, the quality of this case is fantastic and I would highly recommend this product to you. If you have one or two GoPros and some mounts, this is the case for you. It's a good size without being too large and I feel confident that my cameras will be kept safe.