I had the best time with this tour. I did all four walks and, as soon as I finished them, did them all over again! They are very accurate, entertaining, informative and fun. I also did the Trastevere walk by Frommer’s, not even close, avoid this one unless you have plenty of time and patience to figure out directions.
I have been to Paris about twice a year for the past five years as I just love the city and the people. This audio guide is fantastic. I have listened to it a couple of times now and I am not even due to leave for Paris for another three days! There is a drawback though - not in the guide but in the format which it is presented here. You have no clear idea where the walks are going to take you as you lack the important items the "real" guide has if you bought it from a shop - the illustrated maps. This is not a major problem though and I am getting over it by going though the guide once more with a city map to hand so I can note down the routes.