The ease of use with no learning curve at all! I am able to get my job done quickly and efficiently without any problems or issues. It's not easy to find software like this anymore. We've been using it for several years now and have had zero complaints about its performance. If you are looking for a simple way to handle your recordings then look no further than Keyserv! No problems here. There isn't anything we dislike about this product so far. This program does exactly what it says it will do - it records everything very well.