The job offer is not spectacular! But at the end of the day it has to be competitive against the salary in your home country. So you have to make your own assessment.

Your basic spending in Doha would be at least QAR 2000. You have to make sure that the utilities are included in the company's accommodation. The cost of taxi is about 15 Riyal per single trip, so if you don’t drive, you have to add that cost too as taxi is the only means of transport in Doha.