There are some actual useful apps, but the insane majority are garbage apps or nice looking apps that take away the need for a web browser. All the major news outlets have their own apps, Netflix, Weather, etc. and the Windows Store seems more focused on portable solutions than real software. Most apps won't let me share articles across social networks (like the Microsoft Finance app), which I use to market my business, or really do anything productive.
I spend 99% of my time in the old desktop running legacy software because that's the only place I can actually get things done. It's still early on the app front, and time will tell how things improve, but at this point I'm not enjoying the new Windows, and the lack of quality software for the new platform is a huge factor in that.