it depends if that's your entire offer or just your basic salary.

Either way, you will still be able to have a decent lifestyle with savings.

Rents have dropped like mad in Doha, so if it is a package deal it won't be so bad.

Other things to consider are benefits - do you have children? Is their education paid for by the company? Medical benefits?etc,

As a basic salary, plus housing, etc, it will be quite good.