Wow... no responses since the op in '04. So a short review based on a stay last weekend.

The property
Large parts of the ground level currently undergoing a refurbishment to add a lounge-cum-bar sort of thing. In my view a mistake, but I'm probably in the minority here and can see that the hotel are doing this i) to attract a younger clientele; ii) to respond to the rapid emergence of designer hotels, which are doubtless taking a fair slice of business.

The rooms
The website blurb about rooms being individually furnished is true and a plus over the neighbouring Grande Bretagne, which offers a more standardised decor (though pleasant, if you like Starwood homogenisation). However, the style in the King George II can vary wildly from room to room. Mostly comfortable and present, but the cheapness of some touches was obvious to the eye (call it theatrical, rather than real design).

The views towards the Acropolis were stunning, though be mindful that of the rooms which do enjoy these views (naturally, at a premium), two floors do not have balconies. Looking the other way, views of the Greek Parliament are also pretty impressive, should you find the building or tourists snapping the changing of the guard interesting to look at (though unfair to blame this on the hotel).

Spa
A bit of a grand term for a very tiny health club shoved into the basement. I tried neither the treatments nor the gymnasium but found the very small L-shaped swimming pool to be pretty useless (unless, of course, you're used to swimming in a L-shape) and too full of chemicals. The attendant's advice that the adjacent jacuzzi, with rather cloudy looking water, was actually clean made me feel disinclined to use it. The changing rooms were shockingly small; not really practical when there's more than one person in there.

Service
Broadly acceptable for a 4* establishment, but on this visit not equivalent to a 5* hotel. Reception and door service were particularly unimpressive: when I asked for assistance from the doorman when dealing with an over-charging cab driver, I expected something a little more assertive and protective of a hotel guest. On check-out I was overcharged on my bill and upon gently challenging this was disappointed by the lack of courtesy.

Dining
All meals are served in the Tudor Restaurant, which the hotel would have us believe is one of the smartest joints in town. While most of the really smart functions held in the hotel have been upstairs in the Presidential Suite. The breakfast buffet was of a good standard - it really shows when upscale hotels attempt to cut corners on this - with lots of choice whether you want a healthy, more local or eggs n'bacon kind of experience.

Overall conclusions
A pleasant enough place to stay, very centrally-located and overall a comfortable experience. Not a grande dame of a hotel, but probably perfectly adequate for anyone willing to pay a premium, without the expectation that it will measure up to the finest international hotel standards. Worthy of being a Leading Hotel of the World? IMO, no. But then there's been much change to LHW membership during recent years, with many of the most exceptional establishments resigning membership and others which mightn't have previously cutting the mustard paying dues and signing up.

Would I stay there again? Most likely not. The Grande Bretagne is the unrivalled top stay in Athens, while the Intercontinental (despite it's relatively more unfortunate location) is a close 2nd. The plague of designer hotels sweeping Athens do nothing for me.