You'll get much of the same Android Ice Cream Sandwich functionality with the Flex's "easy experience" option, but with less complexity. Think one home screen instead of five, and large, easy-press icons instead of the standard mode's profusion of tinier buttons.
I love Pantech's emphasis on looks, and I really enjoy the multiple angles and materials for the Flex's backing. However, its jutting edges aren't as comfortable in the hand as I'd like.
On the left, Pantech's simple mode offers straightforward options in the notifications pull-down in a glance. On the right, you have to dig for more-detailed settings and information in the standard mode.