Really good app. Allows for easy sharing of any content if you have a central PC setup on your network as a content server. There is a free version on Google Play that I tried out first, and it works fine. I'm not sure why they didn't release that one here as well. I put this on my Kid's Kindle Fire HD's and then my Android Phone. Works great on the New Kindle Fire HD 7". Getting external access to your network server isn't hard but it does require forwarding a port on your router if you want to access your content on the go across 4g or someone else's wifi.
I really like the ability to scale down the bandwidth usage of content when I'm playing it on my phone to use less mobile data since mobile data is expensive.