Hotel Contilia is 2 minutes away from the metro station, which is a good thing, because you need it , if you want to see the city. The hotel personal is friendly and helpful, and they know English pretty well. You need a map if you want to go by yourself, you can find maps at the reception. You can buy a metro ticket, for 4 euros the whole day.
The rooms are great , but if you are nonsmoker you must tell them, you can mention in you reservation. Almost all the rooms are red, but i've seen green rooms too.
The breakfast is acceptable. Not a very large variety of foods, but fresh and good.