Untrained, impolite staff. From the doorman, to the front desk, to the restaurant, we have never been treated as rudely as we were at this hotel. I speak fluent French, so it's not a language or cultural issue. The staff simply have no idea about how to treat their guests. Stay away.

I am a Parisian and I am used to places where you pay a lot for a poor service. But the Hotel Costes tops it all by a very arrogant staff who looks at you from above.
They play on this wave that has been around in Paris for years now, where the more arrogant you are means the more important you think you are. Costes specializes in this type of behavior.
Well, if you want to be treated that poorly, go there and spend your money on average food and drinks. Or, go 20 meters on the right and enjoy the beautiful, elegant bar at the Mandarin Oriental, where you will get a respectful service and delightful coktails. This is the real elegance and trendiness in Paris.

Not to be missed, especially if you want to see some gorgeous people! You'll forget about the food as you'll be staring at the people walking by. I loved it!

We have encountered the worst experience in our life with this hotel.
We had dinner on Xmas evening, and we asked the hotel staff to take care of our coat & belongings as usual.
Then, when we were going to leave the hotel, our belonging (a Xmas gift that we bought) was missing.
It was clear that the hotel staff stolen from the cloak, but what was more unbelievable was the behavior of the hotel staff.
- they promised us to help & call back, but no phone call
- we re-visited the hotel to complain the situation, but the floor director just said "ok, call the police if you want" and he shut down the discussion.
- another hotel staff promised to call us back, but no phone call, again.

We just can't believe how come they behave & treat customers like this? Their employee has stolen customers belongings, but they don't appologize, don't listen to us, don't try to help, but just ignore.

They cannot work in a hotel with this kind of crime, and I'm sure we are not the first one to encounter this kind of catastrophic attitude.

If you are going to visit this hotel, really be aware of the quality of these people. They don't work for customers, they only care how they dress up every day.