I have Roku 3 and that works very very well. The Roku stick works well, but it lacks the processing power. The process that not smooth was going through the apps. Switching from app to app was not the problem. There must have been an update because moving around in the apps has gotten smoother. Very nice device for a kids room so they don't have to have cable.
I purchased this almost a month ago and I'm very happy with this product. My son loves the cartoon options in Netflix and I love news options offered. I have committed myself to severing the CABLE umbilical cord because the Roku is more than sufficient for my families viewing pleasure and much better for our budget.
I have two of these (one for living room and one for bedroom) and I absolutely love both of them. I don't do cable or satellite so the Roku is perfect for streaming almost anything I want!!