The last two are more of disadvantages; The remote setup eats a lot of memory from the remote machine, and needs an excellent internet connection, and can't in

The last two are more of disadvantages; The remote setup eats a lot of memory from the remote machine, and needs an excellent internet connection, and can't integrate with local editing (You have to use two separate windows, and it's in general nowhere as neat as tramp). The saved prefs are synced without version control, which means you can't really count on them.