I find it easy to use, has many functions that are very helpful in my work as an oil well geologist. It is also quite simple to navigate around this program once you get used to how it works. There isn't anything really bad about using K-Mine, but there could be some improvements made. If your looking for something fairly user friendly with lots of options then definitely give k-mine a try! This program helps me keep track of all of my wells and their data so i do not have to write down everything or remember what each one looks like when i am at another location working on new projects.