I have a Mac too, but only because I had to develop and test some software on one.
I'm interested to hear how you switchers cope with the basic annoying broken stuff on the Mac. Things like the fact that you can't resize windows on any edge/corner, the random behaviour of the maximise button in many apps or disappointing keyboard support in apps (even with the extra support turned on in the OS).
Even when I have used a Mac for long periods, little things like this have driven me spare and sent me scurrying back to my Windows boxes for day-to-day workstation usage (not that I'm saying that Windows doesn't have its own annoying features).
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Remind me to change my signature to something more interesting someday