Eyyyy, I got mine! I didn't get an email saying it was shipped, so I wasn't expecting it this early in the month. Got it installed and calibrated, looks okay so far in Windows! Installation took probably 15 minutes. The hardest part was getting the original slew sensor's connector out.
Update: Fastest way I knew how to test this in a game was Elite Dangerous, and... yeah, works amazingly. Full right deflection does mean my finger just barely brushes against the coolie hat but it's pretty negligible. Yay for accuracy! Money well spent!