Super expensive. Crappy picture selection. Horrible policies. Rude robotic customer service. When you sign up for a subscription model, no other service that I have ever used has charged you to cancel. Other services do this for a reason. They do this in hopes that you leave happy with their service and will come back in the future.
Shutterstock doesn't want you to come back. They want you to leave frustrated, angry and to find a better service. They just don't realise this. Won't ever use them again.