Inconspicuously located in an industrial area by River Road and Irving Park. When you walk in, you are pleasantly surprised by how nice the lobby is. Staff is super nice and accommodating, most of all honest about what's going on with the car. They'll take their time to show and explain, not pushy at all. Great service and pricing for a luxury car repair shop. I received worse service at an actual Mercedes dealer before. Very happy I found this place.