I might be lucky but my current installations of Arch are very bug-free. (except for a could bugs in the software, but I just report those to the upstream developers and they get fixed) I remember the last time my system broke, it was when they merged /bin and /usr/bin. I then proceeded to read the news posting wrong and break my system. Then it was up to me to fix it and it took about an hour.

On my other computer I correctly followed the post and had no issues.

https://www.archlinux.org/news/binaries-move-to-usrbin-requi...

I use the gnome offline updates with no fear, just whenever I turn off my computer I check the "Install Updates" options when it is available. It is all beautifully seamless.