Now that I have been using it for a few weeks it has grown on me even more. I had one hiccup with my two Apollo 8's cascaded where the outputs weren't working on the second Apollo unless I edited the I/O config .. but it was solved by installing 10.3.1
It is definitely faster to open and save projects, also much faster to generate the waveform previews when you import the audio for a new project.
I am a software developer during the day and granted I didn't use Logic until after the upgrade came out but I can say I like the look MUCH better than Pro Tools. Pro Tools looks old and outdated. My only complaint is that when working in the mixer I with the whole channel can have it's own color instead of the little label on the bottom.