One of the key things I noticed was “Better than caffeine.” I’ve been using caffeine for about a year and never had an issue. This program extends some functionality but takes away from the simplicity that I like about cafffeine (clicking on and off). It would be nice if you could set the “defaults” for time to stay awake and then simply click the icon like caffeine. That would make it, at least for me - better than caffeine. On another, more serious note. I just had to uninstall it after several days of debugging reasons but it was crashing my brand new 27inch 5k retina display running 4gb graphics card and 32gb ram. Maybe I had the settings incorrect and there was a clash? Not sure but it crashed everytime imac went to sleep and I even checked “allow mac to sleep.” Ran out of ideas and uninstalled.