Lots of people have been using the beta and dev versions for a long time, it's a lot faster and there are lots of upsides. I used it for a long time (switched to Emacs recently) and found it superior to ST2 in just about every regard.
I am a big emacs fan as well and have switched back to emacs after two years of using Sublime. One thing I do miss from Sublime is the blazingly fast grep on Windows. On linux emacs grep works well enough, but on windows grep is broken out of the box on binary builds and using cygwin causes greps to be much slower for some reason.