Amazon Unlimited

For the past several days I've been debating if I should jump ship on Smashwords, and by connection Itunes, kobo, sony, etc, and drop all my books into Kindle Unlimited. If you don't know what that is, Kindle Unlimited is a rental service of sorts for ebooks. $9.99 a month gets you access to every ebook that opts into the program - think of it as Netflix or Hulu for books. I THINK there is a cap on how many books per month you can get, but I honestly am not sure.

As 99% of my overall sales comes directly from amazon, I haven't exactly benefited from having it elsewhere. However, if I do move them to Kindle Unlimited, then I have to give Amazon exclusive rights to the books - 90 days at a time. As the people reading this are mostly readers of the series (or at least avid book readers), I am asking your opinion.

What ebook app do you use? Would you try out Kindle Unlimited, as a reader?