It's a quite reasonable offer. Very few people get this kind of offers. You can save as well.

Lifestyle in Qatar is very good (some people may differ with me).

Still if your husband can negotiate upto 60k, then it's good.

Housing 14000- 16000 (good 3 bed room accomodation)
Education 2500 per kid (average)
Utilities 1000 (average)

Good Luck!