Thanks! Vector (http://vector.im) has had a lot of UI/UX focus - but the nice thing with Matrix is that it enables you to pick the type of app/client that you like - and whether that's a web client like Vector, a terminal client like weechat (http://matrix.org/blog/project/weechat-plugin/), a mobile app, or even a different service like IRC - that's entirely up to you!

Check out http://matrix.org/blog/try-matrix-now/ for a list of clients/apps that support Matrix!