Every couple of weeks they'd put out a patch that claimed to fix the wifi, and while it did get better, it was never as good as it should have been. I live in a 1-bedroom apartment with an 802.11ac router and all of my other devices work fine. The router's off at one end of the apartment where the coax comes in, but I'm never more than 25 feet away from it.
I've heard here and talked to a number of professionals that do not use Linux because they want something that "just works". But if I really sit down and catalog my issues, Linux can be a headache to set up, but once it's working I rarely have issues. Part of that is researching the right hardware, so I guess it's not the plug and play of proprietary platforms, but it works.
The last piece of productivity software I wanted on Linux was just released recently (Substance Designer), so I'm seriously considering a dual boot. Have to keep Windows around because it's my gaming machine, but I'm a bit sick of having software updates shoved down my throat at inopportune times.
What pisses me off the most about W10 is that it makes you pick "active hours" when it won't install updates, but it's a 12 hour maximum and it's the same every day. As if my home computer's usage pattern on Monday-Friday is going to be the same as the weekend.
The newest and my personal favorite is a faulty file save/open dialog on OS X. Anytime an app invokes that, the entire app crashes. Really fun in Chrome, Word, Atom, or any other app that involves opening or saving files.
My MBP is so buggy as it is with El Cap that I prefer to use a cheap surface 3 for anything other than dev work.
Every time Apple releases a macOS update I'm left to decide between the bugs I already experienced that might be fixed and the mountain of bugs that are surely hidden in the new update.