the rating is mostly based on value for money.

the rating is mostly based on value for money.
you have to consider that this hotel charges prices that are beyond rude, especially given the wage level in Italy (if it was 1/3 of the price there would be 5 stars).
consider the following:
the rooms are quite small and standard.
the breakfast is mediocre at best (but the staff doesn't even manage to clean the tables, so depending on when you eat there won't be space...)
the gym does not deserve this name, there are 3 machines, some bikes and treadmills, that's it.
the served lunch /dinner (at Least if it is buffet) does not live up to Italian qualities or standards.
the toilets in the common area are hidden and not very pretty.
the front desk does not have power plug converters.
these are all minor things, forgivable in other hotels, but not if you call yourself a luxury place...