Quite far from the metro if someone have to take a luggage all the way from the station. Up and down the stairs, and even as I took the taxi from the airport bus at Opera, it costs me 18euroes and the driver couldn't drop me off right in front of the building but at the end of the street.
I requested for a twin room, and the so called "twin" room they had for me was like a pullout bed for kids. I saw the double bed room and the bed was honestly small.
Upside was there's a microwave, so if you feel like saving some money you may cook for yourself as this is also an apartment, also this is a relatively safe area near the business district. For the DOWNSIDE, the reception is closed from 12-2pm on public holiday and Sunday i believe.... i got there at 1210, no one was there, couldn't even drop off my luggage at the store room, thanks goodness there's a Japanese restaurant at the end of the street where i had a 2 hr lunch till 2pm. That's when i finally get my room.
Hygiene wise, there's a strong smell in our room while we first got there, had to keep the windows open for a bit. Think it might have been the smell of the cleaning lady's perfume. The elevator also smelled of trash as they were clearing them out the time i was there.
I didn't try their breakfast but if you have to pay more than 70euro for this room, go for other options as your transportation cost would add up to quite a lot if you don't only take the metro. Why not stay closer to Opera or even Gare du Nord?

My wife, 2 young kids and myself stayed 2 nights here in early July 2007.
The location is good for local restaurants, grocery shops and bakery but a little too far imo from La Defense metro stop as our kids are both under 6 yrs old and not fond of walking, especially after we toured Paris.
For driving out of Paris to Rouen, etc it's great as it's a simple and short drive to the A-14 motorway.
The Suite was nice enough but had a musty smell to it. The bathroom and kitchenette was fine.
The staff I thought were brilliant. Very helpful and were great with our kids.

Overall we enjoyed our stay and I think it's a good spot if you're driving out of town to the west, like we were.
I think if the staff were less than brilliant then I'd rate this place much lower.

Honestly, I booked the place for its free Wireless connection.
That said, the rates were more than reasonable, and the area (just half a kilometer from the La Defense arch and Metro/subway station) was clean, beautiful, and relaxing. Easy to get to downtown Paris, and not even that far away from some sights if you enjoy long walks of an hour or more roundtrip. (Great for runners!)
The two staff members spoke English very well and were very patient with my embarrassing inability to speak French, but let me try a few French phrases.
SInce the apartments in the hotel do have refrigerators, microwaves and tableware/flatware/glassware, I recommend a visit to the supermarket inside the Les Quatre Temps mall, which is on the opposite side of the plaza in front of the great arch from the stairs that lead down to Rue des Lilas d'Espagne and the hotel.
After you're done eating, etc., make sure to empty your trash, wash the dishes, and defrost the fridge before you head out as a courtesy to the staff and to other guests (if you don't, they'll charge you a penalty that costs more than one night's stay)!
All in all, I recommend this place without any hesitation.