Stayed there for honeymoon in mid Dec 2011. Spent 5 nights in the lovely suite room.
Service there was really good. They offered a lot travel information, recommend you restaurants and offered to book for you if you don't speak the language.
The location is good. Between 2 subway stations, 3-5 walking distance to the stations.
Breakfast wasn't too many choice tho. Food quality of room service was ok, can be improved.

Hotel Le Six was the perfect location for us. It's near two metro stops, tons of bistros, patisseries and the Luxembourg Gardens. The staff was extremely helpful, giving detailed instructions on how to take the metro to multiple locations, recommending restaurants, and generally attending cheerfully to every conceivable need that arose. We ordered room service for dinner once and it was delicious. The buffet breakfast was average, but the coffee was not good. Housekeeping never disturbed us during our weird hours of jetlag-induced sleeping, but always cleaned the room to perfection when we were out. Le Six is a nice hotel, has an appealing contemporary decor, and the rooms are fairly spacious compared to most French hotels. Given the price, it is an excellent value. I'd definitely stay there again.

We arrived here early after flying from Australia. The staff were fabulous. They allowed us to check in early and upgraded us. The hotel is clean, comfortable and in a great location. We look forward to returning for a visit when we're not so jet lagged.

We stayed at Le Six for five nights over Christmas 2011 and could not have been happier with the hotel, service or location. At one stage we had a problem with heating in the room but rather than wait for the problem to be fixed we were immediately upgraded to a larger room. Staff were always helpful and well informed. We highly recommend Le Six.