Covering, itself, is not hard. I had never covered before and I did a pretty good job. However, to do an excellent job is something that only experience can improve. It doesn't take much to do a "good" job, but it takes skill to to a great job.

My hardest part was knowing what temps to use. At first, I was using too low of a temp, and was dissappointed at the result. After asking around on RCU, and went back and applied more heat. It was really cool to see the monokote shrink up and form up drum tight.

Go for it, and if you get stumped, ask lots of questions. There are many here that can give you excellent advice!

By the way, what plane are you trying to cover?