The more owners who submit reviews the higher the score, where obscure pins will be pushed down. I have watched pins like Deadpool, for instance enjoy glowing reviews soon after launch, then become a stinker, then climb back up after a code release.
Munsters was the best thing since sliced bread until weaknesses were revealed and complaints rolled in.
Unless you are loaded and money is no object you simply have to play a pin to know if it is for you. That is unless you get a killer deal on one you can easily resell.