Really impressed by spacemacs so far. I started out with Emacs back in the day. Switched to Vim at some point. Spent the last 7 years or so using Visual Studio with the fantastic VsVim plugin. After a while I began to see Vim more as a great set of keybindings, not so much as a program to proselytise in its own right. Most text editors will have a Vim keybindings plugin. Now, after moving to new work and away from the Microsoft stack, Spacemacs is seeming like a great system – very very thorough Vim bindings support, but with a very powerful and well-though out system underneath that.
Spacemacs was completely unresponsive at startup. Turns out, for whatever reason, it was after I was using my laptop in a new place, and based on this FAQ obviously the ISP there was doing something funky: https://github.com/syl20bnr/spacemacs/blob/develop/doc/FAQ.org#why-is-spacemacs-hanging-on-startup.
Adding the settings there to the user-init function did the trick:
(setq tramp-ssh-controlmaster-options "-o ControlMaster=auto -o ControlPath='tramp.%%C' -o ControlPersist=no")