When reading the post about CoVim I tried getting it to run, but it gave me ugly errors about my python version which (I really did try to fix) but took a bit more time than expected and I gave up.
When coming to the vim-support, it works great! Even better than in Sublime since in Sublime there is this marking of what has been added the last few seconds which I personally don't like.
Installing was very easy both for vim and sublime, though I had to manually install it for Sublime text and restart (the settings menu was disabled, not sure why).
Also there was no default config so I had to copy/paste from the site and add my username/secret.
Something I'd love to see: The ability to see which user is editing where (using colors, I believe like CoVim does?).
But anyway, great work!