Good, but could use improvement
The good: compares pricing for a number of bookstores, including one of my favorites, Better World Books; indicates “used” book status; books browsable by category and searchable by keywords, title, author, ISBN & more; direct links to bookstore book entry; wishlist function; prices seem accurate (only tested a few). The less good: Bookstore links are embedded in app, not shared to browser, so navigation can be confusing; only one wishlist within app; no account setup to access wishlist between devices; limited number of bookstores available (bookshop.org, please!); purchases are not consolidated within app, though this is implied by indicating methods of payment on home page.