I've been having trouble with wifi on my iPad ever since I did the 8.0 upgrade, then the 8.0.1 upgrade. Before that, it worked fine, except I couldn't log on to my Facebook account through the Facebook app, I had to go in through the web. It was never able to "connect to the server," through the system settings. I tried everything, including completely flattening the system, and starting over. I accepted the lower functionality. None of my other iOS devices had this problem.
So I decided to upgrade to 8.1 today to see if we could get rid of the wifi problem. After failing to verify the update twice, I rebooted the iPad, something that cures a lot of its problems, but now it asked me to connect the iPad up to iTunes. So I did. It said the iPad was in "recovery mode" and I had to do a fresh install of the OS. I tried two more times, got the same result. So I did a fresh install. Then restored from a backup (no indication what the dates are on the backups, wouldn't it be nice if it just offered the latest, and options to get even older ones).
Now I have an iPad with none of my data on it. No I don't trust iCloud (do you blame me).
The commercials are still funny, but in a way not, because today's Apple software is so much like the PC they used to ridicule. There really is no silver bullet in software, you just have to test, and be conservative in your changes, if you want to keep from breaking your users.
PS: The Facebook app still doesn't work.