Has the same if not less functionality as just placing individual windows beside each other. I am a person with many tabs, and it would be nice if at least one of the windows created had the majority of my tabs on it. Instead I get two tiles, each one with a single tab on it, and another window full of my other tabs behind them. If it gets fixed to be in one window I'll give it a try, until then two stars is all I can give it.