I've never used it before, never had a reason. Today the Yearbook students at my work needed to print out some pictures. They were fumbling with some fangled Microsoft Photo album software, and every time they printed they came out blue. They tried it on 3 different computers, same results.
So pulled out my laptop, installed iPhoto. Popped in the the PhotoCDs, iPhoto opened an imported. Selected which pictures they wanted, fixed the red eye, then printed them as 4x6.
Worked perfectly.
Everyone went "Oooooo!"
I really appreciate Apple's hardware and software, even more so with this all-PC network that can't do something as simple as print a Photo album.