Nice business hotel
5 mins from the Grande Arche la Defense station, itself 15 mins by metro to city centre, makes it more suitable for business than for leisure. Take care with luggage, it's a walk with quite some stairs.
The rooms are quite good, though. Heavenly bed, extensive bathroom (separate bath and shower), desk and 2 chairs.
Two small notes:
* Breakfast usually not included in roomprice, and outrageously expensive.
* The picture on their website (and Yahoo) is outdated. A new big office building is under construction nearby, dwarfing the (beautiful) architecture and making you feel small even when you're on the 18th floor.