Despite reading other reviews here, we decided to stay at this hotel based a Greece travel guide. As we learned this is a hotel that you can love and extremely dislike at the same time.
The best part of the Attalos is their great location. Walking distance to the Metro, Acropolis, museums, tavernas and shopping in the Plaka.
The location is also one of the problems with this hotel. The Attalos is on a very busy street with a tremendous amount of noise. If your room is on the street side, expect traffic noise until late in the night, only to start up again very early in the morning.
Noise continues to be a problem inside the hotel. Hotel guest who visit the bar on the top floor can be very loud as they go down the stairs for the evening. With the hotels open stairway, loud conversations can be clearly heard several floors away. So getting a quiet night’s sleep is a matter of chance. Out the 5 nights we stayed, 3 nights were extremely disturbed.
Finally, most of the staff were very helpful and courteous, however, there was one staff member whose tolerance was thinly disguised. The rooms were the typical European style that you will find in many other hotels, nothing special but functional.
So if you’re looking for a convenient central location the Attalos is a good choice. If comfort and quiet is important, strongly consider other locations.

We stayed at the Attalos based on an online recommendation and because we wanted to try another hotel after returning to Athens. The price was good but other than the front desk staff not really any better than our other hotel. You pay for breakfast, the beds are adequate though my husband tossed and turned and the sheets were not retucked when made that day. There is free internet access (20 min limit) the view from the terrace is great but we did not go to the terrace bar. The bathroom was good but the shower a bit too strong. The room was adequate in size for 2 adults and our 12 year old. TV had CNN. We had a balcony and the door to it was sound proof so although we were over Athinas Street we did not hear street noise. It is extremely convenient-2 min walk from the metro and you can walk everywhere easily. You are given a map and a card with your location and a local map when you check in that is very helpful. We would stay here again for the convenience and the price but are more likely to check out other similar hotels.

Better than a youth hostel, but not by much. The rooms are small and bland, and a little behind on maintenance. Even so, the value is undeniable. You are a short walk to the metro and all of the major sites. Any other hotel in the area is 50% to 100% more expensive. That being said, if you're taking a honeymoon or a "price is no object" type of trip, I would discourage you from staying at this hotel. This is not a "memory for a lifetime" type of hotel. For a young traveller on a budget, it's a great base of operations to see Athens.

This hotel is nothing special. The rates are pretty good, but the room is VERY basic. The hairdryer is useless and the ammenities are just very basic. We probably wouldn't stay there again. We stayed at AVA Hotel the last night and it was MUCH better for only a few more dollars a night. There was also quite a bit of noise on the street at night. We were in a room facing the street and the first night we didn't sleep a bit. The breakfast is also nothing to write home about. Just an OK hotel, compare it to an older Motel 6, in the US.