I received a Roku Stick as a Christmas gift this year and used it to replace my original ChromeCast stick. Frankly, I love the Roku Stick not only because it has far more channels to use and you can select and add them yourself instead of waiting for some arbitrary autoupdate to add a channel you do not use. And I really love the separate remote control - I find it convenient and quick to use. I also have the IOS app on my iPhone and iPad and use it once in a while - its nice but I find the Remote Control quicker to use.
My family loves the Roku Stick. So easy to install and use. We bought it to stream Vid Angel and discovered a lot of other channels that Roku offers. Roku Stick is Awesome!