I don't use it a lot because I mostly watch Netflix and have a smart TV that I can get to Netflix without the Roku, but have used the Roku for Sling. My husband uses his Roku all the time and loves it. There is an app for Kindle which works well and it is nice when you need to type information in.
I really wanted to love this product. In fact, I kept it over 2 weeks after purchase just to see if it would magically start working one day. Unfortunately, the roku turned out to be a complete BRICK! So instead of using it as a paper weight I decided to get my money back. The store tried to get me to exchange it for the next level, but I didn't feel comfortable investing another dollar into a product that might not work.