This is really cool but pricing for commercial images seems high. At work we use pixelz.com which is an API for human image processing. They clear cut/resize/rotate and recolor for around $0.60 per image. Results are fantastic, we have around 1 in 1000 images that have to be sent for reprocessing.

The only advantage I could see to using this is the instant turn around.

Edit: I was looking at the one off pricing. It looks like subscriptions are really good value.