The service is timely--they let you know when they are coming.
The service is fast--usually two people are working so they get the job done quickly.
The service is friendly--the people are friendly, courteous, and efficient!
The products are not harsh and are pleasant smelling.
When the Merry Maids are done our house is wonderful!
I like the hour window notification the day before. They are consistent with cleaning, I know what to expect. They do deeper cleaning on a couple areas each visit and leave a thorough note describing what extra was done and what extra will be done next visit.