I love that I can book online and get a price upfront - without having to play phone tag or have a pre-cleaning visit.
We used Groovy Maid to do a deep clean of our mom's house for her birthday. Both my mom and my sister (who lives at home) raved about the clean. My mom was thrilled with her gift and my sister said the refrigerator was "really shiny."
I did have an issue with the website not taking my booking right away and didn't hear back from a voicemail I left - but I got it to go through, so maybe they just decided not to call back?