http://www.zappos.com/ Apparel Vertical Accordion 156 seconds
Zappos has an accordion checkout marred by forced account creation and poorly organized forms.
Forcing account creations adds the steps of creating a username and password, and is an immediate source of friction at the top of the checkout. Inside the checkout, fields are organized in a one-per-row way that makes the checkout feel even longer.
There are also multiple distractions, including an ever-present navigation bar and a highly visible coupon code field, both of which can tease customers away from the checkout process.
The Zappos Desktop Checkout complies with 47% of our recommended best practices.