The features might be 1 to 1, but the compatibility problems I found is when you use Office in Windows at work, then work on same file on a Mac at home, then go

The features might be 1 to 1, but the compatibility problems I found is when you use Office in Windows at work, then work on same file on a Mac at home, then go back to Windows at work. The formatting can change. As an example, in Excel charts the colors will be different, the alignment will be off. Also, I find Excel to be unbearably slow on a Mac, when the same file works OK in Windows. And yes, the VBA Editor on Mac versions aren't at par as in Windows. When I bring work home, it's usually because of a deadline and these things will slow me down (including different keyboard mappings).