hello congratulation for your job.i have been in jubail(ksa)for 5yrs.first off all the house rent is normal not soo high cost like here but 1 thing we have to pay yearly.and regarding school for ur daughter inshallah we have indian school.grocery items are also in moderate price.womens are must to wear abaya(burka)there who ever they be so im in hindu christian or from other relgion.its good there is fanathir beach too.compared to qatar saudi is cheap for grocery items &rents etc.
what else do u want to knnow????/
if anything else plzz let me know
but remeber if ur salary is higher than here then i prefer u to go
anyways its ur wish

thank you
take care
all the best