I'm mostly very happy with ES's design and UX. There is one small thing that I'm hoping you're considering including in v1.3:
1) The field validation in the the login/register form causes the form fields to jump around a little bit making for a slightly unnerving UX. It would be nice for this effect not to happen particularly since it is the first interaction that any user will have with the site. This comment applies to both the main login/register form and associated module.