This is easily the most feeble of all the many Rough Guides I have used while abroad. If the author did all the research and writing on his own, than that's a mistake which shows. He's clearly uninterested in art (viz. cursory descriptions of Musee Fabre in Montpellier and Musee Goya at Castres), so someone who is interested should have been employed to help him out.
There are glaring omissions - the rural area around the Herault Valley is fascinating and offers lots of walking possibilities, and there should have been clear advice on where the best beaches are on the Languedoc Coast in the Montpellier-Narbonne-Beziers sector; Catlos more or less dismisses this whole littoral, which is wrong, as there are a few nice, uncrowded places among the dross, and that's just the kind of thing that a Rough Guide should know about and pass on.
I also think it's pretty unhelpful, re accommodation, to say: "you could try the Hotel Moderne at x village" without any comment at all on its merits or prices.