Tiling manager are often keyboard driven. If you use mainly your mouse/touchpad, it can be quite painful.
My feeling in floating window manager is that i soon as a window is hiding another, the one on top should just use all the available space, there's no point in seeing the one bellow. If you need information from 2 windows, it's much better side by side.
For many terminal windows or one Emacs and one terminal, I might use tiling, but I can still overlap whenever it makes more sense. Plus, the consistent keyboard controls (I use a config pretty similar to https://www.c0ffee.net/blog/openbsd-on-a-laptop/#cwm) make me more efficient than a mouse interface.
Granted, I've been using i3 for more than half a decade, but I do agree with sibling posters on how 'freeing' the experience is once you get used to it. There is no doubt a learning curve; but in my experience it's on the order of days.