If you use MS Office at work, then using MS Office on your mac makes sense. You're pretty much assured that you'll have full sharing between the two versions.
Yeah, the interface is completely different to the Windows version, but you get used to it after a while.
If you don't need to share files, other solutions will work better for you.
But. For every person who uses and likes MS Office on the Mac, you'll find ten who hate it.