This thing actually has some potential. I figured I would give the spigot on my new Fermonster a try and grabbed a sample to see how fermentation was going. I expect the FG to be in the 1.025 to 1.030 range (the lactose adds about .008 of unfermentable points)...so probably about 70% through fermentation so far. It is very yeasty, but there is a distinct, and pleasant, graham cracker flavor. Not sure about any peanut butter. It is hard to say if I get much chocolate or if I am just drinking something that looks like chocolate milk and I know there should be chocolate there. The actual cereal is much less sweet with less pb/chocolate flavor vs actual Reese's cereal.
