Sorry I havn't skiied them, but I just bought some new boots and was looking at/researching a bunch.
The Sprayer boot is more geared to the novice skiier due to it's soft flex (50/40) but it may be alright for you if your light and only want to use it for park skiing. Take a look at the Scratch boot, (95/85) flex means it's better for someone who will ski harder and go bigger.
As for the price, these are last seasons boots, so there is a big discount on them. the New rossi boots that have the Sensor-3 technology are a step-up, and they fit really nice.