We bought a 2-hour groupon and unfortunately we received MAYBE about 1-hour's worth of cleaning.
The maids where extremely slow in how they worked, I mean, really dragging their feet. They did not do a thorough job -- suffice to say they went AROUND furniture to sweep, so you could see the ring of dust under the couches sort of thing.
All they accomplished in 2 hours was: a pretty small L-shaped kitchen (which my fiance and I went through the trouble of organizing and cleaning up the night before), cleaning one 1/2 bath, dusting and "sweeping." Honestly, I could have done all of this by myself in 1 hour. They did NOT touch the bedrooms, master baths or the carpets. And they were packing up their bags with at least 5 minutes left on the clock.
The only reason I'm giving this 2 stars instead of 1 is that when I called the service to report this, Sheila (the manager) expressed a great deal of sympathy and seemed just as displeased by the results as I was. However, she never followed back with us to remedy the situation.
I suspect Spotless got in over their heads when they signed up for the Groupon deals, and they ended up hiring a lot of unqualified folks. It's too bad, because we were looking for a long-term maid service, but will now be going to Queen Maids who seem to have a better reputation among our friends.