Promising but still rudimental. For instance, after I've entered the name of the author, I have found it impossible to view a list under any heading other than "title" even though I created an "author" list heading. So that's pretty useless.

Also: when you enter all the data about a book in a particular list (say "Nonfiction") and you have a lot of lists (say "Nonfiction" "Geography" "Poetry "Architecture" etc.) there is no way to just view ALL of your books as a single list. You have to open that particular list. Which is another annoyance.

Neverthless this application does have some promising features but before you start spending hours and hours inputting all your info, be aware that at some future point you may find a better app and have to do it all over again.

I'm still looking for a mature application of this type. But this one ain't it.