One more data point. I switched and found it very painful to internalize keyboard commands while still having to do Windows work (i.e. switching back & forth). Once I went "mac-only", it got much easier, but now I suck at using Windows again.

Was it worth it? No. You can be fully productive in which ever platform you choose: Windows, Mac, or Linux. Each platform is fully mature. Productivity comes from your commitment to learning your tools and practicing.

There is an advantage to Linux as it allows you to truly learn (freedom). But you do loose time tweaking and yak shaving.