I wouldn't use "querying" and "George" in the same sentence. The charges are still pending.
The job doesn't look too bad...basically adding flavor to a class taught by a Chinese teacher. With kids this age, a Chinese teacher in the room with you is GOOD...practically a must. The hours are a bit long for the salary but not inconceivable. The holidays are light...but starting this year ALL public-school holidays will be lighter.
Make SURE the apartment is fully private...not just a "private bedroom" dodge.
Make sure that by "Z Visa" they really mean "Residence Permit".
For the last few years kids in Jinan have been...uh...
easily spooked. Can't imagine why.