To be fair, Saitek have said this is expected behavior in W10 and are working on a fix for their fix.After I installed Windows 10, the MDF started being unstable. It would turn off sometimes and fail to display all text. I ended up getting a Thrustmaster Warthog HOTAS. Never going back to Saitek
The only fault I experience on my setup is that it's stopped showing Mode X text on the MFD when in No Profile, and the MFD brightness flickers after PC power-off until set again. It only does this on one machine, not a big deal for me really - never notice it in the DK2 :d
Now if you really want to see an example of driver failure on W10, try Fujitsu and their ADF flatbed scanners. Completely inoperable, and it's a $5k scanner.