I mostly just use Mint for aggregation between accounts, budgeting, and trend monitoring. We pay our bills via paper. I don't like logging into each bill's bill pay website. Paper seems easier because it reminds you right there, where as a bill pay website you have to actively go to. If banks provided an ability to aggregate between accounts like Mint, and integrated bill pay (like yours) into a single site, that would be pretty close to ideal for me.
