There are a great deal many things I love about Plane but mainly the ability to quickly make checklists within a card. It is so essential as a developer in my opinion to have a plan of your task list and being able to quickly and concisely update this is without doubt one of thee most important things.
Some project management tools enforce you to create checklists by writing them out one at a time but Plane keeps it like a bulleted list. This means it takes away the clunkiness of requiring a mouse to update a tasklist which most coders that I know do not like.
Other features I really like:
The ability to quickly see different views such as table, kanban/board, timeline etc.
The ability to block issues due to another issue.
The ability to filter out updates/comments as I leave my done tasklists in the comments section and an on-going to-do tasklist in the card description.
The ability to colour text within the card description.
The ability to personalise the theme on desktop.
The fact it has a mobile app.
The ability to contact customer support as a chat bubble.
Plane is the work infrastructure for humans and the AI agent era. Projects, knowledge, and service on one work graph: cloud, self-hosted, or air-gapped.