We have used Clix a couple of times and we really love the photos. We had our Christmas pictures taken last year at the one near our house, my DD was 1 and my neice and nephew were 2 so it was a challenge as you could imagine! They actually photoshopped my dad out of one of the pictures so we could get a picture of just the kids together. it's amazing!
One thing I really liked about Clix as opposed to some place like Sears is that they use a hand-held camera as oppose to the one's on the tracks.
I think the prices are a little bit higher then other places but for special occasions it's definately worth it! Hope this helps!