I tried every Typinator- styled application available for OS X and this one works the best, no problems and it sure saves a lot of time when typing. I use a lot of repetitive phrases, words and www site addresses and this makes life so much easier. The authors other programs work GREAT also - KeyCue and PopChar X which I also use everyday. Get the s/w bundle from them and save some bucks, all 3 are utilities I use everyday.