The AppCenter is the hottest development area, so there are new features and fixes landing every day. But in the not very distant future you're going to see the result of a lot of work: https://houston.elementary.io/

There is a problem with Epiphany, namely that the webkit version that ships with Ubuntu is long outdated, hopefully that's going to get fixed: https://blogs.gnome.org/mcatanzaro/2016/02/01/on-webkit-secu...