Taking the cylinder out of the locking mechanism was very simple, just a matter of removing two Phillips head screws. The rekeying process took less than 5 minutes and since it was just one lock, the sales associate only charged me the cost of the two new keys that matched the new cylinder setting. This was a savings of at least $70 and I felt was well worth the time and effort. If you are not handy and are not sure about how to remove lock cylinders, there are plenty of tutorial videos on YouTube that do a great job walking you though each step. Good luck and get ready to save money!