It’s easy to use. The interface is user friendly. I like that you can make changes easily without having to restart the program. You can also add multiple items in one go which helps keep track of them all. Sometimes it gets slow when there are a lot of files open. Also sometimes it has trouble with opening new documents if you don’t close the previous one first. I haven't found anything that I dislike about this program yet. If you need an accurate estimate of your projects costs then this software will help you get the job done.