This has already been mentioned, but I don't take a whole lot of stock in the numerical rating. It's a guidepost, but doesn't mean a whole lot. What I really enjoy are the detailed written reviews, both pro and con. Before I buy a pin I usually read through the ratings to get a better sense of the machine's strengths and weaknesses. Sure, it's still not foolproof since it really boils down to personal tastes, but I still find it helpful.