My cable service kept raising my rate for the same basic service and would not work with me. My brother and his family had ROKU and love it. So I purchased the ROKU streaming stick. It has a lot of channels and works great.
I have my Roku Stick about 2 months it is good and easy to use. It is hard to use with youtube because there is no keyboard but when paired to a IPAD it is much easier. For movie rental you would be better off renting from Red Box if you have one close by it is much cheaper!