It was tedious last time I tried because you had to remember what windows are tiled and what floated and explicitly switch between the layers. And only rotating

It was tedious last time I tried because you had to remember what windows are tiled and what floated and explicitly switch between the layers. And only rotating was supported, not Alt-Tab style LRU switching. Alt-Tab works the best for the most common case of 2 "hot" windows because you don't have to remember the order of the windows regarding rotation.