Are you serious? I ask this out of genuine ignorance, knowing only a little of what has gone on in the Windows world the last ~4 years. This is what Windows 8 apps are supposed to look like?
I don't claim to be a design guru, but it looks like somebody was going for minimalism, but used a nuke instead of a scalpel. My eyes don't know what to focus on, there's limited indication of what things are, and in places it's hard to tell at a glance where one component ends and the next begins.
It's not so much ugly as it is intensely vague and somewhat undiscoverable.
Edit: Just to be clear, I don't want this to be seen as a criticism of this app or its developers specifically, I'm operating under the impression I'm getting from other commenters that this is very Windows 8-ish in general, so take this as bewilderment at the Windows 8 style.
http://www.theverge.com/2012/5/18/3029547/microsoft-windows-...