I both like and dislike tiling windows. It's nice having stuff automatically take up non-overlapping space on the screen when you spawn new apps... but this doesn't scale. Even on a 32" monitor I almost never have any more than 3 windows.
Which means I end up having way too many workspaces (aka "virtual desktops") to compensate.
I remember using openbox back in the day, I've set aside some time to try it out again - a long with a new panel (would be a serious faux pas to use i3bar with openbox).