I've tried to switch my workflow from vim + tmux + tmuxinator to spacemacs a few months ago, and I must say that it easily could replace my Vim environment, there was evil-surround, evil-nerd-commenter, etc. even neotree, and plus I got org-mode, other really great packages and the power of emacs, however I didn't find a replacement for the tmuxinator part, I need it since I usually have projects with several shells in different windows and panes aside from vim, so in the end that detained me from doing the switch and continued with vim.