sorry to tell you that but it might not be such a good offer, life in dubai is pretty expensive. there are many things you need to consider, the location of the accomodation the company provides, as dubai is really crowded and traffic is a headache, if you are earning close to a six figure salary then you have to deduct the tax and see which base salary is more.
The best thing that I see in your offer is the number of days of holidays and the tickets.