After using
SlingTV for a week, I'll report it works great, but it's customer service leaves much to be desired, not that they don't help, but the inefficient means they offer customer support about your questions. After you locate the place to send them a help request, you'll discover there is no troubleshooting web portal customer service ticket system and there is no way to talk to them on the phone. Guess that saves money.
When you submit a question, you'll see a message that says "watch your in basket", no not any basket in their website, but your email in-basket. About 6-12 hrs later you'll get an response. The first one of these I got I was irritated because while they told me they were working diligently to answer my question, they did not bother to answer the question I had sent them, such as how to you edit your MyTV list? The answer btw is to scroll the list to the far far far right and you'll see an edit button.
PS, if you plan on paying up front 3 months for either a Roku or an Apple TV (discounted price), do that before you sign up for the one week trial. However, even during or after the trail, you can still take advantage of the offer, by emailing them and offering to pay for 3 months in advance, and they will make it happen.