I lived in the CROUS Résidence Lepaute. It perfect place to practice French and get a glimpse into the life of what real French students do. I, myself, never speak english here. The other students are friendly, helpful and inclusive.
The room has everything you need: kitchen, bathroom, desk... It is a dorm so you do have to pay for furnishings such as pots, pans, cover for bed, trashcans, etc. (the basic furniture is provided).
The neighborhood is on the very edge of Paris, the area is very modern. It is a lot like America so if you need help adapting, it is a good place to go. It takes a little longer to metro places since you are further, but there are many lines here. It is nice because it is not nearly as crowded as the city.