I’ve got one, and so far, it’s my preferred stock for my BRN-180. In this pic (the only pic I have right now) I’m also using an SBRed lower with the KNS adapter.
I’ve tried a Magpul Zhukov stock with Haga Defense adapter, which was the most comfortable stock, but it added about an inch or so to the overall length making it not fit in the pack below. I’ve also tried a JMac Customs 8” stock which is very nice, but too skinny in my shoulder and too short overall for it to be very comfy when shooting.
The Midwest stock is about 9” and folds up short enough, but is also long enough and wide enough for longer shooting sessions.
The overall length for me is important because I carry it in an Osprey Talon22 day pack.