It's hard for me to think of anything Microsoft has done outside of developer tools that looks and feels somewhat consistent in terms of their UI in the past 5 years. It's like they've completely abandoned any 'UI-esque principles' and instead have just left everything up to whatever the fuck they feel like at the time. I used to feel pretty good about upgrading to the latest Microsoft software - but it just isn't there any more.
Skype makes no fucking sense right now - neither on Windows or on Mac. On my Mac, it will show Skype contacts or Mac Contacts - but it does not seem to show my Outlook 2016 contacts. And, of course, in the new version of Outlook, Microsoft has decided to destroy compatibility with using Mac and Outlook contacts interchangeably.
Skype for Windows is a disaster. It decides to pop itself up in front of the user every boot up. It doesn't have a 'get the fuck out of my way' option - and of course it's buggy as all hell. It's sad when I'm barely using Skype and my computer slows down - and I check processes and Skype is using 100% cpu for no goddamn reason.. End Skype and everything is better.
I really wish Microsoft would work to make their own programs more consistent and compatible with each other. This isn't just a Skype issue. Outlook 2016 is completely unusable. Excel regularly crashes on typing very simple formulas. Powerpoint files sent to me from Windows users crash Powerpoint 2016 often. And, of course, Outlook 2016 isn't compatible with anything and loves to add duplicates of your contacts.
But, of course, Microsoft has decided that their latest software is always better than old stuff so they're taking control of your computer and upgrading you to Windows 10. And one more thing.. Microsoft's programmers are cocky as hell. Every single one of them I've ever met act like they write better code than Donald Trump has words.