The interface feels far more grown up and finished, there's no hurried feel to anything. It just feels more easy going, I can't really describe it. It's cleaner and just feels just relaxed and far less cluttered, I've yet to hit anything which has made things difficult, which is really something considering all the fresh logins I had to do and apps to download. The device feels great to hold too. I've not tried the Sublevel app yet, can I have a link?