The most important feature is that it is very easy to use and has the best customer support I've experienced. The software is very intuitive and it's easy to get started using it. I also love that it's able to connect to the cloud so that you don't have to keep all of your data on your computer. I have used it multiple times to inspect a variety of things. I use it to inspect roofs, driveways, and other structures. It's also helpful for checking the roof of a vehicle to make sure that it is structurally sound.