I have one of their belts, but I'd probably go with the Arch if I were to do it again.
Their communication is horrid. I had to send the belt back due to the fact that I ordered it a little too large originally. I think I emailed them weekly for a month or two before they responded, and it took 4 months or more to get it back, when they originally told me that they had a replacement belt portion in stock and marked with my name.
When I finally had it in my hands again it was way too small. It took me a couple of months to get over the disappointment (thinking it was my measuring again).. After closely inspecting/measuring it, it turns out they sent back a belt 4" smaller than requested. It took FOREVER to get their attention again, but they did ultimately make it right.
The fit/finish is pretty good. The construction is OK -- I originally ordered it with cables which were very nice, but they broke despite the fact that I only clocked about 12 hours in it. They replaced the cables with Chains temporarily since they said they were having problems with the cable design. I'm not impressed at all with the chains or the way they attach to the belt and shield -- too flimsy and pinch prone. They still haven't contacted me to tell me their new cable style is ready for prime-time yet.
I haven't decided if I'm up to going yet another round with them and actually meet up with them at Black Rose in October or not.