If what you are looking for a high quality UX + access to the most capable models (today that'd be the GPT-4 killer, Claude 3 Opus), then I think you'll like what we've built.
Double ha similar features to all the other Copilots, code autocomplete, chat, etc but we've put particularly care around getting the small details right (even the smallest thing like making sure our autocomplete closes the brackets appropriately). If you're coming from Github Copilot you should check out this side-by-side comparison: https://docs.double.bot/copilot