I would recommend Sweep Home Chicago as a good cleaning service. I have never had a problem with lateness or canceling. I use them for a regularly-scheduled once a month cleaning. I would recommend this option to others, as it is the best way to know for certain that you will have someone scheduled for your cleaning far in advance. I docked one star because, as others have pointed out, you don't always get the same person, and this leads to inconsistent cleanings. Though I have never had a "bad" cleaning per se, some are noticeably more thorough than others. However, my last couple have been very good and I am hoping that I will continue to have the same consistency going forward.