Remember making this pattern using Rings That Bind uses a lot of fabric. Be sure and check the yardage requirements for each size before you begin. Here is the yardage chart:
One color rings: Queen - 31 yards of fabric King - 35 yards of fabric
Two color rings Queen - 27 yards if fabric King - 31 yards of fabric
Two color family rings Queen - 28 yards of fabric King- 31 yards of fabric
I made a King size one for a friend. It is easy but I got very bored with it before I finished. The good thing is when you are done, the quilt is done, no basting or quilting needed. I plan on making another one but will do a block in between other projects. I would suggest you make a practice couple of rings and use thin batting.