Nice UX. Works smooth. A common UX issue with having to upload a bunch of full size photos before you can do anything is that it can take ages. It seems Montage uploads those in the backgroud, while you can already edit your book = smart.
This looks cool. Been meaning to print some of my photography into book form for a while, but last time I used Blurb years ago, the OS X app was horrendous.
Absolutely love the "test drive" from the homepage. Auto-populating your service with content allowed me to immediately visualize using it with my own images. Good work!
Product Hunt
Maker Audience List
The Unofficial Slack Button and Bookmarklet
Gratify
Zoey