I regret doing the upgrade too. My 5s has had terribly slow LTE and wifi since the upgrade from 7. I usually have to turn off all the radios with airplane mode

I regret doing the upgrade too. My 5s has had terribly slow LTE and wifi since the upgrade from 7. I usually have to turn off all the radios with airplane mode for a few moments to get any connectivity back when it slows down. There aren't any new obvious features that make a big difference. Tried keyboards but they all kind of suck so just went back to stock. If you haven't upgraded, hold off for a while.