Oueslati Med

Dear readers, I am an English teacher by profession. I'm considering a job offer in Oman. I don't have the least idea about life there. I was told that my salary is about 400 Oman Riyals. I would like to know if it is a good sum. Please tell me. What kind of lifestyle I am going to see? What about the cost of living in Oman? I am looking forward to hearing from you very soon. Thank you.