Cedric Rollschuhe
I lived in a casa particular for about a year and a half, and I have to say it was one of the best experiences of my life. I had a wonderful time and met some amazing people. It's a great way to meet people, and the quality of life to rent ratio is unbeatable. It's also very convenient when you're new to Paris and struggling to find accommodation. The staff at the casa particular are also quite approachable and transparent. However, the quality of services (which was impeccable when I first arrived) has declined somewhat over time. This is probably due to the increasing number of casas particulares around Paris. Also, the initial system of co-opting new housemates, with the choice of new roommates, is largely disappearing (it's practically nonexistent now), which is a shame because it's gone from coliving/community living to just giant shared apartments. This is especially noticeable in the newer casas particulares, where community rules and other guidelines haven't yet been established like in the older ones. That's precisely what makes this type of experience so powerful. Overall, I highly recommend going through Casa. In my experience, people who left (after several years) did so either to move in with their girlfriend/boyfriend or to move out of Paris.