Any experience with KGM in general or the SMG9 in particular?

So I'm on the hunt for a can to mount on my B&T GHM9. I'm interested in a flow through/low back pressure system, and this particular KGM model has my attention. The other option is the full size B&T SQD RBS 9, but it seems to have a reputation for not being all that quiet despite it's size and weight.

KGM seems to have a good reputation, save for some friction when they shut down direct sales for a while to focus on .gov contracts. It looks like they're back, though.

I suppose the Huxwrx Rad 9 is a good third option as well.

I don't have any experience with it one, but I found the SMG9QD for $475. That seems like a pretty good price.

https://www.smga.com/kgm-technologie...kiarmslistings