I have recently used this as an alternative to Sizeup for window management. I was particularly interested in the ability to save a default size window in an application, and to then be able to restore that window with its original size and placement with a hotkey. I tend to move windows around without meaning to, so this helps me keep things very tidy.
I first started testing this at version 1.1, which did not implement window padding correctly. I contacted the developer to fix this and to add the ability to not only tile windows, but to add an additional space between windows, something called "Useless Gaps (UG)" by Jérôme Andrieux, who implemented this as a hack on the window manager Spectacle.
There have two updates since 1.1, now at 1.2.1. I cannot say with certainty that the updates were a result of my correspondence for help with the developer, but I can say that windOCD now does everything I need!
Five well deserved stars!