1. Tagging people was the biggest one... it's added, but sometimes doesn't work (attached video). Also not sold on the format in compose part (display name instead of npub). Thinking it would be less of trouble if in preview I could click the name to see person to see profile / npub.

https://nostr.build/av/d1f4edeecbf300605d10a59ea1bff993b5cd47272bda1a21d89e600d7b57ff7d.mp4

2. Making it easier to embed media (attach button and also drag and drop support)

3. Emoji suggestion popup once you type semicolon... like in Telegram / Slack; see nostr:npub1v0lxxxxutpvrelsksy8cdhgfux9l6a42hsj2qzquu2zk7vc9qnkszrqj49's https://snort.social as well.