Un-patched, 'til I hit a wall w/ the M6 CTD. I'm waiting patiently for the next patch before I jump in again, but I'll upload the video from both M5 and M6 when it's fixed. It's gonna be good video, and if you haven't played it yet, I won't spoil anything, but things get quite desperate!
I'm a sim-nut by nature, so spending $$$ on a peripheral is just part of the game for me, spending ~$150 isn't really unusual, and easily justified. You can't tell by watchin', but I'm also usin' a CH HOTAS (stick, throttle, pedals), all of which I just can't recommend enough. And if you review the other videos from my YouTube Channel you'll find more examples of TrackIR and HOTAS usage, from WWI and WWII (RoF, IL-2), to infantry combat (ARMA 2), and space exploration (SW:EM).