I've tried bookwyrm and hardcover and a few others. In general I think they're getting there, but there's weird edge cases where it's not as smooth an experience. Partly because they don't have a critical mass of users, partly because Goodreads really was in a pretty decent place when it effectively froze.
All that's going to improve over time, but atm, for me, switching costs from the old platform aren't worth it.