Ranked in these QuestionsQuestion Ranking
Pros
Pro Used by a lot of sports teams for free photo gathering
Cons
Con Hard to download photos
Downloads are limited to single photos, not full albums.
Con No Lightroom integration
Shutterfly apparently has or had an API for uploading photos, but the only Lightroom plugin to do so is outdated and crashes while trying to upload.
Con Poor site design
There are multiple "silos" in the site with different user interfaces for the same function, and with different bugs in each. For instance, trying to import from Flickr the support person had me navigate to the Flickr connection UI via Create Photo Book (which actually worked, but didn't give me an easy way for others to draw from my Flickr-hosted photos), because the "Connect to Flickr" function in the main upload screen was broken. Albums in "My Photos" have drastically different capabilities compared to albums in "Shared Sites". This leads to confusion and completely unhelpful support/help documentation.