I respect everyone's choices and if you say you need MS Office then go ahead and use it. You use what you find best, I'll use what I find best.
However here's my question. First let's compare current MS Office and a version from, say, 10 years ago. What is getting done better that matters with the newest version? Has productivity increased? Are presentations and documents slicker? Does that mean they communicate their information better? Are spreadsheet models a lot better (maybe they are, I don't know)? Or are they just more complex and maybe buggier?
Now do the same comparison between the latest MS Office and the latest LibreOffice.
There was this guy I used to work with who was considered the organization's PowerPoint guru. He did all sorts of amazing tricks, effects, and whatnot. I will be the first to say there is no way those tricks, effects, and whatnot could have been done with Impress. His presentations wowed his viewers just about 100% of the time.
So, was he getting his message across better?
What actually happened is that the viewers were so busy watching all the pyrotechnics that his message often got lost.
So think about the true value of all the "extras" in MS Office. Certainly there are edge cases where they present value, but is that true for 90% of users 90% percent of the time?