Université de Savoie

This way, you would have the opportunity to become fully immersed in french University life and take part in student events and activities

The Curial was the only thing offered to most British students, cost 440€/month and there were several problems - e.g. the internet connection was free, but rarely worked for some people; also the "kitchenette" didn't have an oven or freezer, and several rooms were smaller than others paying the same amount. It being a "hotel", it was difficult to have parties etc in the Curial, because there were non-students staying there, and the owners were very strict on noise. If you're already going there don't worry too much, it's easy to meet other students there, and I enjoyed that, but I wish the surroundings had been different. If it's possible, I would recommend that you avoid a privately-run residence like the Curial and, if you can, come to Chambery beforehand to arrange an apartment/house (perhaps with fellow Erasmus students from your university, if any). It's certainly what I would have done, and although you're not living near other students, you'd get more space and wouldn't have to deal with the wardens/'helpful' people who run halls.

I had already some experience in living in a residence and the apartment is the choice I prefer.

I enjoyed living independently as it allowed me to immerse myself in the culture by experiencing every day life of paying for bills and rent. Finding yourself accomodation can often be cheaper than student halls and you have more control over the area in which you choose to live.

because i like the life of a campus

I would chose to live on campus because it would provide more opportunity to integrate with the home students.