I would actually say that Microsoft Office suite was really good (up until recently when they started trying to funnel you into their cloud storage). But even with that blemish, the UX is still pretty good. Hitting the alt key let's you access any menu with just a few keystrokes that show up when you hit the alt key so they don't have to be memorized. I can also work a hell of a lot of magic in Excel without ever touching my mouse, and not needing to memorize every keyboard shortcut I need. I wish every app and desktop in every OS followed a similar standard for keyboard shortcuts.

Macros/VBA is still awful, but overall, despite the horrifying computational abuse I put office suite through, it's actually very stable!

And, it's fast enough once it loads. It's still pretty slow to load though.