On this page there’s 3 highlights (premium only) outlining what GAP are doing right and wrong. (Tip: use the arrows above or on your keyboard to navigate all 37 ‘Checkout: Address Validator’ design examples.)
The screenshot was taken May 11, 2016 and depicts GAP’s Address Validator. In total, we’ve reviewed 36 of GAP’s design elements. To see them all, visit the full GAP UX case study.