never used it, probably not going to start now.
but realistically, this isn't really a question for that (or for claude or gemini). none of those is even remotely close to that type of chapstick/kleenex/bandaid mind share we're talking about -- and especially in the case of grok I don't want to give it any ideas haha.
RE: ChadGPT on ChatGTP and the Power of Mind Share