I have a Lumia 820 with SD card and this built-in app was one on my waiting list and its does not disappoint. No doubt, I'm heavily into podcast with my 3hr or more a day commuting. It works great, background downloading only over wifi, very little wear on the battery, subscribing to a new podcast via the Bing search is all very amazing. And with the new storage saver, I dont worry a bit because all the content is stored on the SD card. Before this app, my podcast content was managed by my Synology nas and I had to remember to sync via pc every evening. Now I dont even worry about that anymore. This new built-in app works great for me with very little concerns. I have downloaded and tried most and even paid for some from the store. Unfortunately not one was totally satisfying foregoing the storage issue, I had to work around stuff to get them the way that I want them to work and it became tiresome. One slight issue and not annoying to mention with the built-in app that I'd found is when quitting the app. Using the back button thru the app doesnt entirely close it. Today I just hold down on the back button to close the app, and neatly this practice has now become the way I close any app on the phone.