I switched a couple of weeks ago just to see how it went. Codex is no better or worse. They’re both noticeably better at different things. I burn through my tokens much much faster on Codex though. For what it’s worth I’m sticking with Codex for now. It seems to be significantly better at UI work although has some really frustrating bad habits (like loading your UI with annoying copywriting no sane person would ever do).