Oh am so happy for you. I was gifted a Go Big for Xmas and darned if I was going to look a gift horse in the mouth and I already love it. I have the churn dash BOB die and love it, have never had my points match this good in all the blocks I have made and the cutting is a breeze. The sewing went so quickly to put the block together I could hardly believe I had the block together and was extremely pleased with how the points matched to a "t" and how nice it looked.
I am looking forward to making some more of the blocks with some fabric sent to our quilt club by some ladies who were most generous and using the blocks for the quilt club for quilts for people who lose their homes to fires. It is a dream to work with. I would suggest you look at what size blocks you use the most in your quilting and then look at the dies available in those sizes. If you can, wait for a sale, as those boogers are expensive.
Happy cutting and sewing.