Gogo, good choice. Question 3: I have downloaded many CCFs without any problems. Question 2: Very user friendy. Question 1: Read the manual, then dive in. Start with downloaded CCF and customize away. This can turn out to be an obsessive hobby. I spent a total of 20 hours on mine over the course of one month. It is almost there. It just needs a few tweaks, and a few tweaks, and a few tweaks.......