Share House are popular housing options for foreigners in Japan.

Pros
Share house usually have low initial cost and no depsit or key money . Usually they are furnished making then easy to move into. Living with other helps making friends and practice japanese.

Cons
Privacy is limited and you have to follow strict house rules . Noice, cleaniness and lifestyle differences can cause problems. Storage space is usually smaller.

Conclusion
Share houses are great for short-term stays or newcomers to Japan, but may not suit those who want privacy and long-term stability.