I am using this to document and organize my book collection. Entering and duplicating records is straightforward and reasonably quick. I have also tested the export capability, which allows you to send a spreadsheet via email, which is very convenient. I don’t find the auto-fill (scan barcode, internet search) option to be particularly useful. I don’t know where they’re searching, but I don’t think it ever found the right edition I was looking for. One improve my I’d like to see is in how the app handles syncing. I have an iPad and an iPhone. I like to use the iPad for initial data entry (typing in a bunch of titles and authors, for example) but then I use my iPhone for taking pictures and filling in the details. There is no indicator that tells you the sync status, which can be annoying. If I add new titles on my iPad, and the tap the “Sync Now” option, the app will show a progress bar that counts to 100%, and the sync time stamp will update. If I then take out my iPad and sync, it will do the same thing, but the data on the iPad doesn’t change. The new records appear on the iPad eventually, but there does t seem to be any rhyme or reason. Sometimes it happens 5 minutes later. Once, after hours of waiting, I had to disable syncing on the iPad, and then set it up again, and the data finally synced. It would just be nice if there was some indicator that says something like “We found the synced file from your iPhone. It’ll take 10 minutes for the database to update completely, but it is safe to proceed.”