That was a bit frustrating.
Went there at 12 est with link to the HC set I bookmarked, 404. went through the website and added it to the cart, tried to check out and the card info area wouldn't load, clicked the complete checkout button and it still wouldn't load, refreshed and the card info area loaded, put the info in and the complete checkout button wouldn't work. Refreshed the page and the cycle repeated for a good 20 min.
Decided to leave the computer and go get the mail, came back 5 min. later and refreshed, now everything worked, just slowly.
I have my set preordered, free shipping too!
Also decided to go back and get Cobra Commander, slow but got the order in for that as well!
No free shipping on CC though, the cost was too low to qualify, didn't order both simultaneously which would've worked, but I needed to use a different card anyways.