I upgraded to ios8 and the two most buggy, crashy apps are iMessage, and Safari, which have rendered my daily use of the device nearly useless. I gave the hardest time copy/pasting URLs from mobile safari into iMessage, it often pastes in something from days ago instead, no matter how many times I re-copy things I'm other apps.

I want my device to 'just work' like it did when I bought it, updates shouldn't feel like downgrades