Not so well. There are plenty of problems in the term and the community kind of avoids fixing/ta;king about them.

I had some trouble with it: things that only work with a fringe, the theme colors all mixed up, even putting a sensible line number background. And after quite quite some time trying to fix it I decided it was just not worth it and started an emacs config from base (I come from Vim). Now I'm quite happy.

Also, I go back to spacemacs git repo to get ideias, tips for my own emacs config.