Every release of Xcode has been a buggy mess. Every. Single. One. It certainly has lots of features but I'd much rather it had less features and more polish. The worst sin a tool can make is to be unreliable and that's the best word I can use to describe Xcode.
The Apple App Store likes to show reviews that are tied to a country, but at least for the ones I see Xcode sits at a proud 2.6 stars, with hundreds of 1 star reviews complaining about bugs and crashes.
Certainly reflects my experience as well. When the text editor of a development environment doesn't work right, I mean, shouldn't that be job number 1? Search google for "Xcode bugs", you'll see thread after thread of complaints.
I can find major complaints of bugs and crashes going all the way from 9 years ago to the latest Xcode release, no other development environment has this many complaints. It is by far the most buggy and crash prone development environment available today. People _happily_ pay for AppCode for a reason.
The last few are actually alright but there did seem to a be period where it broke every release and dropped highlighting and completion as sourcekit would crap out. Word is internal apple devs were also annoyed and complaining frequently.
