Stayed at the IC Athens in February 2008 and was thoroughly impressed.

The hotel has large, clean and spacious rooms with an excellent restaurant on the top floor with amazing views of the Parthenon and delicious food.
The hotel has one of the best gyms I’ve ever seen as well, with a wide range of new equipment (outdoor pool only though, closed in winter).
The location isn’t so good though, and you’ll need to take a taxi to get to the best parts of Athens (although I believe that’s pretty normal).

I chose the Intercontinental for it's reputation of quality and wasnt disappointed in that way.
The rooms are quite spacious and there are a few things that I especially enjoyed; the powerful shower pressure, the fact that you can continue on listening to the telly from the speakers in the bathroom and the bathrobe.
Speaking of bathrobe, I expected there to be two of them since I had booked a room for 2, but perhaps that is not the standard.
Other than that, there was nothing in the hotel that made me say Ooh-la-la, but nothing made me shake my head either. Except maybe the horrid nouveau-art sculpture in the hotel lobby of the blue man (or is it the man in blue?).
The shuttle service is frequent and the drivers polite, it stops at Syntagma Square, but seemingly they dont have a problem dropping you off in the Acropolis area if you ask.
Also I had a lovely salad in Cafe Zoe (which is in the hotel near the front desk) upon my arrival from the UK, and was happy to see they were still serving a full menu until midnight.
Altogether it was worth the money and a pleasant stay.

Excellent business hotel with all facilities that you require, great restaurant and pool, clean and spacious rooms, friendly staff.
The hotel to stay in Athens when on business or leisure.

Our stay at the Athenaeum Intercontinental was part of a package as two nights pre- and two nights post-Mediterranean cruise. Therefore, we have no idea what we had paid!

The hotel was very clean and well appointed, albeit very typical of an Intercontinental Hotel anywhere. Overpriced mini bar - never mind, just go outside the main entrance and buy your stuff from the little news stand across the street!

At first we thought the hotel was a little out of the way, but we soon got used to the light rail (and cheap) service downtown.

Each morning, the buffet breakfasts were very good and had a great variety.

Overall, we wouldn't rave about it, but a comfortable stay, nevertheless.

Regards,
L&M from Oz