First of all, here salaries are tax free. So in the begining is a good offer.

If housing, school for the kids, medical care, and transportation are not included in the 5K even better. 5 K US$ is over 17 K QAR which is a good salary. If the saary is all included and depending on your household you will have to manage neat finances.

But in the end it will depend on your lifestyle....welcome!!