I just finished reading my first ever book in it's entirety on an e-reader.
I've been trying to do this ever since I bought my ipad. It's actually filled with books. I've got not only the E-books ap, but the Kindle ap and a couple of other no name apps with free classic books.
I chose to read Mansfield Park. It's the only Jane Austen book I haven't read and it seemed the quickest of all the classics I have downloaded.
Overall the reading went great. My only issue was not being able to constantly see how far along I am. There are no page numbers. If you tap the bottom of the screen it will give you some strange numbers and a percentage of completion, but no page numbers. This frustrated me to no end. I like to put the book mark in the book and see my progress. This is not totally possible with the Kindle ap. The Ibook ap does not have this problem. There are page numbers on every page. As for the ipad in general as an e-reader, the pages were easy to read, the lighting and font were great. The size of the pages was even similar to a real book. It was easier to read while eating vs. a real book and my hand didn't get cramped like it sometimes does when reading huge books like Atlas Shrugged or Anna Karenina.
The reason why I have never used to ipad as an e-reader is because I have to fight to get my turn with it. The kids love to play games on it. My husband surfs the Internet constantly with it and it seemed like whenever I had it in my lap to read, it would remind everyone else of what the wanted to do on the ipad. I always felt rushed to finish a chapter so that someone else could have a turn. No one ever bothers me when I have a real book in my hand. Short of actually buying another couple ipads or shelling out for a Kindle I don't think I will read too many books on the ipad. If was just my ipad, then sure I'd read more often, but with 3 kids and a husband who loves gadgets and web surfing I don't think I'll ever be able to convince them to let me use it as a book again.
I love my books. I love to see them arranged on my bookshelves. I love the colors and the shapes and the smell of the paper. I love the portability. I love not having to charge them up at the end of the day. I like not worrying about battery power. Sure it's convenient to be able to have a book wirelessly delivered, but I still have a hard time paying money for a computer file to read. If I'm going to pay money, then I want a book in my hand and not a file that could possibly be obsolete in a few years. I want a book that I can take and sell back to a book store and trade in for another book. That isn't an option yet with e-books.
I can say I've given it the old college try, but I am not a convert. I'm not saying I'll never read another e-book, but for a while at least physical books are still going to be what I love and what I read and collect.