Don't like the look, so plain and bare looking, but that's not so important. The install went very smoothly, I was lucky compared to some here. But what does bug me is the crashing with certain pages, ones that ran fine before. I use an interactive map site as I read the game of thrones books, just won't work now, starts to load then crashes. In Mail any emails that are only partially downloaded will not download when I push the link at the bottom, just can't read them now. That's all so far, not too bad compared to some but two very annoying ones for me.