Pinwheels are time consuming. One queen size quilt took me 5 months. It's huge, super warm and comfy. But it took five months.
Double four patch blocks are SO much faster! Also queen size, this one only took a couple weeks!
I used various scrap fabric that I had on hand, and took advantage of strip piecing to whip off the four patch blocks. I'm not going to back or quilt it right away, since I've got plans to do another quilt top out of my scrap fabric and it will be easier to back and quilt them both at the same time. I don't know where this quilt is destined to end up yet, but the bright spring-time colors make me happy amidst the endless rain we've been having.
Conclusion: rotate quick and easy quilt patterns in between the complicated ones - you'll be very happy you did! :0)