It's a nice change, but I'm not all that crazy about it. Everything seems to be in the same places from what I've seen so far. I'd be interested to get a first impression of the layout from someone who's never used the app previously.
My initial reactions to UI changes are generally negative but I've learned that's mostly just due to the abrupt change in familiarity. I like the new UI. The icon is weird. Especially when it's amid other app icons like FB, twitter, snapchat, etc, which all use the same style, more or less.