Nice, congrats. I know from my wife working for AIG that insurance companies are awful at hiring and they take a very long time to hire enough people for the jobs that need to be done. Do you get OT or is it salaried? I'm assuming the extra 15% means salary which is still pretty good.
Even if the job hours are 2nd shift alot of times they let you switch once you get started and put in some time so figure out if you like it or not then ask to try the early shift.
Good luck enough the next few months while you can.