Each category is broken down in an easy and simple way, giving you some tasting notes to keep in mind. The sub categories are a great way to describe some of the aroma or appearance characteristics. Note that the sub categories are not weighted with a score of their own as the overall category score is subject to your preference. Just because a beer has hints of grapefruit in the aroma doesn't mean that is necessarily a good thing, some of you might not want your beer to smell that way.
When you start to do this in a group you'll fine that everyone rates their beer differently. A great example of this is the first time I rated a beer I was with my good friend Mike and my lovely wife, Kristine. Both of whom have a taste for Belgians. The first beer we tried was Mother Earth Brew Company's Kismet. A great IPA full of Nelson NZ hops, which I LOVE. Needless to say, they were not fans of the beer and rate them as so. I on the other hand enjoyed it very much and it is a staple in the beers I usually get. But conversing with them during the tasting was extremely fun and so much so that they wanted to do it again. This is what I want to do with each of you in my Brew Club. Check it out. Last but not least, remember that behind every craft beer there is a hard working man/woman trying their best to give us the best beer possible. Please do not negate their hard work with negativity. Cheers!