I love the WM innovation that is happening in Linux right now. I've used i3, awesome and pop quite a bit.
That said, I've gone full circle and just use a regular ol' floating style for now. This is because if the realisation that my workflow is to open a browser, a terminal, and then just use tabs within them.
I always want to know other people's workflows! I'm sure for some people who need/want lots of windiwd open, scrolling and tiling WMs provide massive utility.
I really like them, but I don't think I can honestly claim they help my oroductivityat all (I might still pretend this is true now and again though)
I use a hybrid setup. I have 9 tiled desktops, and 1 floating, across 2 monitors, so I "make a mess" on the floating one and the rest are task focused, typically with one dedicated to a single browser window for my "main" browsing.