I borrowed a set for a class I took. (The small rectangular and larger circular ruler.)
I then took a class at my dealer. It was an all day class and I learned a ton. I was very happy that I didn't rush right in the way I normally do and purchase everything in sight. For me at least it is going to take lots of practice. I was focusing too much on manipulating the rulers. Having said that, you could do a surprising amount of things with those two rulers, and then buy special ty rulers based upon the quilt itself and what you want to do with them.