When I get a new Mac, this is the first app I install. So useful and feature-packed -- yes, there is a steep learning curve and sometimes it hangs on startup, but those are minor quibbles. Just the launching features are worth it but when you add in the clipboards, a fast script menu (though, admittedly without contextual switching to display scripts specific to the current app), auto-text entry and more, well, it really is indispensable.