Pros
APril 2020 and I'd finished from RCS. I was set to do a mini-vacation before returning to Canada...and then Canada shut down the borders! I was stranded in Japan with no job and only AirBNB. RCS took me back with no notice for a short term contract (even ending before the semester) even though all the schools were closed (so only paid 50%, but still), helped me get set up in a short-term lease at LeoPalace, and then went the above and beyond to help me get Japanese corona-money from the gov't. I was always treated quite well by all the staff at RCS (one of the reasons I stayed for a second year), but this experience clinched the deal why I would recommend them.
Cons
Salary. Salary is so low. And the contract is worded in such a way that you're not paid for anything beyond the flat line. Vacations: un paid. Get sick: ...we'll see... Gotta leave to do something in person (bank? post office?) Better hope there's a day off somewhere in your near future, ain't no one going to let you go during a free period.