I have just returned from a 3-day sightseeing trip to Rome, and spent my nights at the Siviglia. To say that the hotel was mixed is an understatement!
Reception was courteous and OK - Bar was closed.
My single room was basically a large cupboard with a clean, but functional shower/toilet.
The breakfasts were the highlight of the stay - good choice and efficient service.
The staff were reasonably helpful, if a little formal.
If you are looking for a place to bed down for the night whilst visiting the beautiful city it is OK, but don't make the mistake of trying to impress a partner - romantic it is not.
The permanent presence of the Carabinieri across the street is moderately reassuring - as long as nobody wants to blow up the Turkish Embassy.
All in all, pretty mixed, but not disastrous.

i stayed at siviglia in january this year. i was a little disappointed by the location of the hotel -- on a back street near some seedy looking pubs -- so i always made sure to be back at the hotel before dark. the receptionist who checked us in was rude and abrupt. our room was located on the first floor and was clean and comfortable with a small terrace overlooking a neighbouring street. the buffet breakfast was great -- we stocked up on bread rolls and fruit to take with us as we spent every day seeing the sights. the main train station is only a 10min walk away and from there you can travel straight to fumicino airport or any metro location in the city which i found extremely handy. the local supemarket filled in the blanks where evening meals were concerned as hotel siviglia did not offer dinner. i wouldn't recommend this hotel to families or those looking for a relaxing break but, if like me, you are more interested in seeing the sites of rome then you could do a lot worse than this.

The room was tiny, but the veranda more than made up for it. I was in room 441, so I had a corner balcony that was larger than the room itself, overlooking the Turkish Embassy. I was in Rome alone, my first time in a foreign country. Someone attempted to snatch my purse a block from the hotel, but the Carabinieri was parked on the corner, so the guy ran off when I screamed. So I guess crime isn't so bad. The maid was really sweet, but the two guys that worked the front desk were rather stuffy and brusque. My only complaints were that the pipes can be loud at night, a bellboy walked into the room to get a lemon from one of the trees on the the balcony without knocking first (I was in a towel the one time this happened), and my personal belongings were always stuffed into the closet while I was out, even if I left a note (in Italian) for them to leave my things alone. The air conditioner/heater did not work, and the sheets were stained, but the weather was perfect so I slept on top of the bed with the balcony open. Also, DO NOT drink anything from the frigobar. The price list is wrong, and you are in for a SURPRISE when you get the bill. Another plus is the pizza by the slice place up the road- wonderful!!! And you can walk to anywhere in the city. I never caught a bus or train the entire time I was in Rome!

hotel states that it has a cafe and lively bar if it has i did not see it and why did desk staff send us else where; room was musty and had damp on the walls , hair drier did not work as did the air conditioning not work .when i told the management that my self and my wife had been robbed on the metro of all our money and c/cards they could not careless and we had a ground floor room (97) when we went out and locked up the room they went in and opened all the windows so anybody could get in and take what little we had left i will not return to this hotel again in fact i will not go to rome again there is graffiti on every wall and doorall over rome it,s full of beggers and thieves and the police just stand there watching them and do nothing