I have had my Vertx Gamut Overland /Premier body armor combo for about a month now. I love it, comfortable back pack with all the room I need and want in a go bag. It holds the CMMG Banshee 300 series unit very well with plenty of room for survival gear or what ever you choose.
The Armor slides in with no problem and in my opinion makes the pack more comfortable, by keeping the weapon system from poking me in the back and giving the pack even more rigidity.
It's a win in my book.