I finished at CATS in house around a month ago, loved it. The environment you work in is brilliant, as in the building itself and the other lads around you.
With regards to the information giving, you have the choice of online or the text books, or both if you have the money. I stuck with the text books, as well as the information given in class. Stuart supplies you with everything you need to know and more! Put it this way....you won't see anything in an exam that you haven't seen before. But it's like anything, you get out what you put in!
Don't have the mind set of, "oh, il pay extra and go to the in house, and pass all first time" A lot of people seem to think because your in house, you get it fed on a plate and you can't fail. Unfortunately it doesn't work like that.
I've met lifetime friends there, and highly recommend it.
Hope all goes well, good luck