It was a pretty good experience. My harshest commentary (grasping for a criticism) would be the process for selecting the four teams.
While the prompts were good, and there was good instruction for selecting the teams. I did need to 'wipe out' or delete the text in that instruction box in order to type in my four selections. I could see typos occurring, or some confusion or mix up on your end if the entries are not succinct. An ideal workflow would likely have a drop box, or more explicit entry boxes (Team Name) and then a second for (Year). I also would prefer (personal taste) to have that team selection prompt occur, one step prior to getting to the cart. For a heartbeat, I thought, wtf, did I just order a set with 4 random team selections. I trusted the process, as you guys have been showing us the beta all along.
I'm not the world's biggest fan of PayPal but I do understand all of the reasons why a merchant chooses it for payment processing. (again, just a personal taste preference). I used it, didn't I?
All told, really good effort. I'm excited about this game.