[henvic]

I've kind of indirect experience: my girlfriend is an iOS developer, and has been using it on her only Mac for a while.

In the beginning it was awful for her. A lot of failures. However, after a couple of months it became quite stable, and she stopped complaining. The only thing that was kind of a nightmare was Xcode.

I'm updating it, and if I were you, I'd update right away too. There are many improvements.

[0des]

What improvements in your girlfriend's daily workflow would she say are most notable, did she mention?

[henvic]

Performance-wise is much better. Animations are smooth, and even AirPlay seems to work better.

Safari is also slightly better, although she dislikes the new way it organizes tabs.

That said, the thing she told me she liked the most, feature-wise related to her daily workflow, is the new Shortcuts app.