I'm thinking of having another go at using the facility documented in the Atom plugin to use Hoogle to get the official documentation and better autocomplete. Last time I tried this I gave up: couldn't get it to work, and wasted I think GBs of disk space in the process.
Can this actually be made to work? Is it worth the effort? Do you get something like you get in the SuperCollider IDE, which offers a handy list of function arguments as part of the autocomplete?