I have made these about 4 times, they are not hard to do. I did the first set just by looking at how they were made in the store, but after that I got a book from the library on window treatments and it was very helpful. I sewed my own rings on, but have since discovered that they sell tape with little loops on it at the fabric store and would do it that way if I did them again.
I have never bought curtains in my life, have always made them, you get the exact fabric you want and it is nice to have it coordinate with the rest of the room.