GA pilots need to know that flying into KESC can be a poor decision, especially if repairs required. The best mechanic/instructor/IA in U.P. and Northern WI relocated 30 Jun 2019 to Menominee (KMNM) because new KESC manager chased him away with very caustic and unprofessional environment. AirNav continues to advertise MAJOR airframe and powerplant repair capability at KESC. There is ZERO maintenance footprint. No shop, no parts, no repair equipment, nothing. You can't even buy a quart of oil for your plane there. An arrangement made with another mechanic located 50+ miles away, but good luck getting a response, especially late afternoon/weekends. If you get stuck at KESC for mechanical problem, you will likely have a long delay and not find much helpfulness from airport admin.