I did the GBA+ trg, and you know what, if you took the time to read the material and think about what the point they were trying to get across was, it wasn't bad information. The problem the trg has is everyone reads the title and assumes it has something to do with deciding which toilet to go to, when it has nothing to do with that. It has to do with where the toilet should be, how many are required, and what size the stalls should be. Well, actually, its about just thinking about that stuff, to see if a hole in the ground meets everyone's needs, and if not, how to mitigate the fact that's all there was money/time/desire to build.