——— rating system.

• ★★★★★ it's perfect
• ★★★★☆ some details could be better
• ★★★☆☆ something important bothered me
• ★★☆☆☆ it wasn't a very pleasant experience
• ★☆☆☆☆ i hated most of it

——— to-do.

• ◇ to-do
• ⬖ work in progress
• ◈ done