The ease of use, the fact that the software is free and that it is an all-in-one tool. The software is very easy to use and I was able to set up the system in a matter of minutes. I have no complaints. I am very happy with the software. It is easy to use and I have no complaints about the interface. I am very happy with the software and I would highly recommend it to any business. I have been working with the software for a few weeks now and I have not encountered any problems. It is very easy to use and I am very happy with the software.