Overall a nice take on window managers. I would like to see shortcut action support that can tap into recorded window sizes. I like using keyboard shortcuts with the window sizes, but having a shortcut that could launch an app, resize it, then launch another, and then resize it would be convenient. However I realize that can already be built using better touch tool shortcut action that runs the keyboard shortcut.
The reason I gave this 4 stars is because the icons it uses for the built in full size, center, and move window to display do not match the icons used for recorded window sizes run with a key board shortcut. I prefer the design of the latter icons, but honestly they should just be consistent in art style.
Finally, it would be cool if lasso could add support for window snapping. It would be different than competitive apps, as I could set a corner or size portion of the screen to snap to a specific recorded window size in lasso.