When it works it's great. But...... I do not print a complete sheet of tab inserts at one time. Usually one or two tabs at a time. Works very well for the first five tabs, but once there are only 5 remaining blanks, it gets jammed in the printer because it is too short to feed properly. Also when the remaing blanks sheet is that short, I must remove the feeder tray top in order to get it fully inserted. From time to time I have had some success with taping the short tab blanks sheet to a full piece of paper, but it often jams. It would work fine if the blanks were on letter-sized stock with the tabs on the lower portion and with the top portion remaining blank thus assuring the the blanks sheet would always be sufficiently long to feed properly. I will not purchase more blanks as long as they are on short sheets. I will just use heavier letter sized stock and cut them out by hand. It's faster than having to unjam and recycle my printer each time.