One of the things I really like about MR books is the illustrations. Sites like manybooks just have a bracketed description of the picture, which is really annoying. I'd like to see more illustrated books in the library, especially the ones that manybooks have in a 'descriptive' version.
The great blurb which bods put with the books is an asset: I copy it into an RTF file to upload to the reader with the ebook.
My only complaint is the difficulty of finding a particular author if their surname doesn't have 'A' as the second letter. For example, if I'm looking for 'Morley' I have to go through pages of 'M' before I find the 'Mo's.
Manybooks tell me off if I download over a certain number of books. MR encourage downloading.
I prefer the books which have a slightly lighter font to the heavy bold which some peeps use.
Keep up the good work.
PS Harry, I tried doing that with one book, a Dickens, and found so many errors I was covering pages with notes about them. I gave up!