We stayed at the Polo hotel for 2 nights last week (Oct 15-16 2009) and overall were very pleased with the accommodations. As mentioned in some other reviews, the Polo is located in the Parioli Quarter just North of Villa Borghese and is just a few blocks South of Piazza Euclid, ...about a 5-6 minute walk to/from the hotel. Piazza Euclide is easily accessible and is only a 5-minute train ride from Piazza Di Populo. Just take the Viterbo suburban train one stop. There are a few small restaurants located in the square across from the train station and a small supermarket for supplies. There are also several buses that run from Termini station past the hotel and from Piazza del Popolo, bus 926 goes right by the hotel.
The hotel room itself was small, but who came to Rome to stay in the room? The breakfast buffet was quite good and filling. We also found the hotel front desk personnel very helpful and glad to answer any questions we had. I would recommend this hotel, but if it’s your first time to Rome, try to stay closer to the attractions. Otherwise, I think it’s a good choice.

Everything about this hotel was adequate but staff have a lot to learn about "customer service" and being pleasant to guests. We felt like we were an imposition and they had better things to do than their jobs!!!
If you're a true tourist then this is too far out in the suburbs. Accommodation met our needs but we wouldn't stay here again.

This hotel was part of a package tour September '08 and found it too far out from the city centre. The air conditioning was switched off every night we were there from 2.30am until 5.30-6am which was noticeable as the room got stuffy and we had to open the doors out onto the deck to get air flow. Their reasoning was to rest the air conditioners.
The shower was small and if you knocked the controller you were
either scolding hot or freezing cold.
Breakfast was the only good thing.

After being stuck on the runway for almost 3 hours and arriving at our hotel after 2 in the morning, I was still willing to muster my best broken, yet polite, Italian upon arrival at the hotel. I never anticipated the rudeness with which we were greeted! By the end of the check -in process, my boyfriend and I felt as though we had been time-transported back to high school and we were going to be grounded for arriving past curfew! The clerk had absolutely no sympathy for our situation and went on to chastise us for missing the hotel car that I had reserved for our transportation. Absurdly, being on a severely delayed flight, stuck in the plane on the runway, these were not valid excuses for this guy...and forget about a warm welcome after a difficult trip! He went so far as to explain that these situations are exactly why he never travels. Weird... I thought people in the "hospitality industry" encouraged travel...
The clerk on duty the following day was not any more welcoming, or even polite. The bottom line here, is that the treatment that we received by these two front desk clerks had a negative impact not only on our hotel stay, but also on our trip in general. I would have walked out and stayed somewhere else, had the room not been part of a package deal.
Beyond the emotional distress, this hotel is generally okay. They do offer a good breakfast and the rooms are comfortable. The location should be taken into consideration, as other people have written here. It is not in the central area of Rome. Taking the train to the subway is easy, though the trains stop running by 9 or 10pm. Taxis have to be used after that. If you don't mind a little travel time, staying here will offer a quiet residential experience. Also, as another person wrote, the internet access was ellusive and the front desk only offered a neighborhood internet cafe. There is a bar around the corner that offers delicious snacks.
Unfortunately, the service at the hotel left such a bitter taste in my mouth, I would never go back. I would feel weird about giving them my money.