I just picked up an Orion belt from T-Rex Arms over the 4th of July and I'm really impressed with it. All of my Esstac and BFG pouches fit as they should, and the panels are perfectly sized to fit a Safariland UBL on your belt over a single panel. The rubber keeps it in place well enough, and the built in belt keepers work great if you feel the need for more security. The sewn in HK hooks are a nice touch. I haven't had any problems with it riding up or down.
I like it a little bit more than my Volund MBB (v2). It's more comfortable, especially with a UBL, if slightly less secure feeling. The pouches do angle out a little bit more on the Orion, but that's mostly the difference between rubber backed modular panels (comfort) and reinforced velcro backed nylon (security).
Gun to head I'd probably pick the Orion, as a civilian.