I saw Cole's Dragon at a local supermarket today, it was the only Skybound set they had. It was cheap, had a nice looking build and minifigures, and I hadn't bought a Ninjago set since Rebooted (with the exception of the Jay fun pack in Dimensions), so I thought "what the heck". I am actually pleasantly surprised with it, I think it's cool that they managed to fit a decently designed dragon into such a small set. My only complaint is the lack of claws on the wings, but maybe the one in the show doesn't have them? (I'm not sure, I've only seen the first and last episodes of Skybound.)
Overall, a very solid set for such a small price. I would like to get Jay's dragon or maybe Tiger Widow Island at some point.