I picked up Witch originally for one specific functionality - the ability to make a minimized application window become maximized from the dock when Cmd+Tabd to. With the default finder functionality you have to Cmd+Tab to the application, it comes into focus, then you still have to click the minimized window to bring it into view. The way Witch handles it is so much better.
My only complaint is in regards to the visual style of the app. Compared to the icon sizes they present, I find the text to be uncomfortably large. You can change the size of the text but the icon size changes with it. Id love the option to adjust the font size independently, keeping the icons a little larger and the text a little smaller. But, its a minor complaint. This is a solid app that I use every day and Im a huge fan.