This is a solid little piece of gear to have at a nice price point. I was a little concerned at first with the retention system used to hold whatever device you choose to use in place but the bands and Velcro retention work well enough to keep the device secured while you are using it and the over the top Velcro closure to secure the device in a closed position when not in use further prevents any chance of loosing the device. Having the cutouts for device cameras is another plus, so you can essentially use this as a kind of body cam if you want to record training drills or something. All in all I'd highly recommend it if you just want to give the nav board type equipment a shot and see if it works for you before investing $300 or so in a more expensive unit.
This is an awesome product. I used it for hands free navigation (ATAK) and one handed photos while climbing Mt Hood and several other bikes in the Pacific Northwest. It held my Samsung S7 with an Otter Case securely. The MOLLE attachments are pretty flexible, allowing attachment with a variety of straps. Haven't used it on operations or MFF yet, but I'm impressed so far.