The humour is rather more laddish than I recall from the previous version

I seem to recall the original being quite laddish. I don't have a copy to check (I borrowed it from a friend), but I seem to remember jokes about which monsters look rude. And the DWM review of it listed appreciating Nicola Briant's figure as one of the attitudes needed to enjoy the book.

I've been considering buying the book for a while, but I think you've talked me out of it. Then again "I'm not convinced how much many of the more serious New Who fans would like it" makes me tempted to try it after all...