I spent several hours yesterday, with a client, editing some not-very-complex vocal takes. It was a complete nightmare. It’s far too easy to unmute a lane by clicking on it without realising - the colour changes are far too subtle - shades of grey.
Moving lanes is now more difficult because Cmd-click (to lock lateral movement) now brings up the speaker, unless you click first, then Cmd, which risks an unintentional movement.
I’m not one who wants to go back to the old style because it was perfect, it wasn’t, but for me the new system is unusable.