It would be nice if the help text wasn't considered while looking for a match to what is already typed.
I had modified SublimeRope so it's proposals have the form "proposal\t(help text)", but when on an empty line I start to type "func", the list of proposals that gets shown is, for example, "filter\t(builtin, function)", "format\t(builtin, function)"].
But if after I hit escape to close the popup, I hit ctrl+space, I get, for example "found_resource"] (that proposal doesn't comes from SublimeRope, but from the contents of the buffer).
In both cases I would expect to NOT have any proposals. In the first case, because I'm only interested in what is about to be inserted (not the help text). In the second, because if I had typed "func", "found_resource" is totally unrelated (the fuzzy search is just too fuzzy to be of any help).
Having "func" replaced by "found_resource" after I hit "." drives me insane (that's the reason I have "tab_completion" set to false, actually).
Edit: other than that, I really love ST2, and I'm trying to get my boss to buy us some licenses (hope that works out!).