I use both a Kindle Fire and a Kobo for library books. The Kindle is very convenient in that you can do it all on the one device - connect to the library, browse for books, download them, read them and return them. I use a laptop with the Kobo - on the laptop go as far as downloading but then I have to connect the Kobo to transfer them to it. Kindle battery life is not good for reading books - needs to be charged every few hours; Kobo lasts days. Kindle is colour, so OK for magazines; Kobo is B&W, so not so good.