We recently spent for a week at the Hotel de la Bretonnerie where we have stayed several times.
It is a very good, comfortable three star hotel and an excellent value with a great location in Paris, the Marais, our favorite neighborhood.
On this stay we were in a Charming room facing the street. It was fairly large by Paris standards and the double pane windows made it quiet. The staff was friendly and very helpful.
Breakfast, which is in the ancient basement, is typical with coffee/tea, cereal, yoghurt, fruit salad, some varieties of croissants and bread, and sliced meats. There is a machine for squeezing fresh oranges with a button on the right side. If you have any problems with it, someone will help. There is a small exhaust fan in front of one table to circulate air. If it is annoying, turn it off. No one will object.
The free wifi (through a service) was reliable and I was able to send fairly large files without any problems. You can also print your boarding passes by using the free computer/printer in the lobby.
There was a TV in the room, but I never did quite figure out how to change the stations and just left it on CNN. We have never stayed in the summer, so while other reviewers have mentioned there is no air conditioning, it was never an issue for us.
The hotel is about a ten-minute walk from Chatelet/Les Halles RER station. Just walk in the direction of Centre Georges Pompidou. When you see it, turn left and walk down on the right (south) side of the building. It is almost a straight line to the hotel. You can also take the 1 line to Hotel de Ville but that means going up and down seemingly endless stairs to get to it from the RER station.