I have a the Roll 1, got it just about immediately after it came out a few years back.
Couple of downsides to it, you can't really put much in it. Things like Israeli Battle Dressings can eat up a lot of space in the Roll1. You can't put shears in it or a TQ, just not enough room. It's not labeled as med and has no ID patch area to add one so either you stencil one or you sew on yourself.
I like it though, because it's low profile. I carry it on the rear of my plate carrier and on the front I use a Haley Strategic TQ and Shears dangler pouch. For my chest rig I use a Beez Combat Systems BLUNT, which allows me to store the TQ, shears, and it's a bit bigger. The BLUNT is pretty much just a bigger version of the Roll 1.