It's interesting to see how adding of features correlates with the quality of a software. I haven't had problems with wifi on Linux since 2012 (when I came back to it from OS X after leaving 2006 with huge problems before NetworkManager was introduced, etc.). It was until two or three months ago after a kernel update my laptop started dropping the connection with my 5 Ghz network, only at home. It seems to be a common problem with the Qualcom chip driver which worked nice on this laptop for almost two years.

I like progressiveness a lot and also new features, etc. and I found a workaround (switched off 5Ghz at home), so it's ok and I can always install an older kernel too which is the freedom of free software, I wasn't able to do stuff like that on OS X.