Worked part time as a cleaner while in college. Decent flexible hours, and enjoyable co-workers (mostly), with a decent pay. Seem to value their staff, received a certificate of excellence for the work I was doing which was nice.
Worked full time for a while when in between jobs/ covering for staff on leave.
I think because ISS provides many services, you could definitely develop within the company. Unfortunately, while looking for a full time job I has just missed the chance to become a receptionist within an office I was already working in.
Working hours, decent pay
Cannot really think of many