Been a customer for years!
Capitol Cleaning has been doing my windows for more 12 years, inside and out. I've worked with Peter the most and other times the guys that come through have always been pleasant. They remove their shoes without asking and one even took the time to play with my dog!
The workers show up on time, leave the place picked up. Over all these years, I've never had one complaint and haven't even thought about calling a competitive cleaning service.