I was looking at this property last night and when browsing the list of available Rome hotels on the IHG site and their best rate, this property (as well as the IC and 6S) clearly showed an "...additional amenity fee of 10Eur/pp/pn..." by the lowest price. However i couldn't find anything about either the fee or the applicable amenities either on the hotel site nor the interweb in general.
Coincidentally the city tax is also 10Eur/pp/pn and is payable at the hotel directly.
So was the city tax poorly identified on the initial hotel/lowest price list or is there really an "Amenity fee" (which of course should be vigourously discouraged before it gets hold this side of the Atlantic)?