It looks really good

The "labels" in the UI can be kinda confused by "tagging" addresses, since technically every address has only one label (integer/index), so in some places that explain how it works I would just change the wording of "add labels to the address" but say create a labeled address instead which just means adding 1, 2, 3... etc

But on the UI it looks pretty and it could work as well from the user perspective since the wallet does the job of tracking and displaying anyway, so I see different addresses tracking the same "label" or "tag" could work, should just be easy to recover in case the wallet is restored you don't lose the tagging