Here's an idea of what the wall calendar from Apple looks like:
The whole process was relatively painless- the hardest part is always choosing the images! I was impressed by the print and paper quality of both services, although it was a little hard to figure out how the Shutterfly desk calendar stood (we got it). The desk calendars cost about $25 each while the wall calendar from Apple was $30.
I'd love to make more photo calendars and other products soon and have them be available for purchase, so stay on the lookout :)