Played with it a bit. It has some good ideas, but hopefully they keep adding features. Some things it's missing (that most or all tiling WMs have):
- Custom keyboard shortcuts
- ability to switch focus quickly with keyboard shortcuts (move to window to right/left, instead of alt-tabbing through all open windows for example)
- virtual desktop keyboard shortcuts to quickly switch to a numbered Virtual Desktop and move windows to them (I have a autohotkey script for this), but would be nice for it to be built-in to this.
- an option to auto-tile when new windows are opened. As it is, it floats new windows, and you have to manually move them into position. This is fairly cumbersome.