We found Maret through Homestars, and figured that since enough people had such good things to say, it was probably a safe bet. We had our house cleaned the day before we moved in, as the previous owners had left it in less than spectacular condition.
Maret came out for an estimate a couple of weeks before, and was very prompt, which was appreciated. She gave us a very detailed account of what was to be done, as well as the amount of time for each task. We were able to remove certain things that we didn't need done, which was helpful.
Be sure to book a major cleaning in advance so that you get the day that you want, as they have a wait list otherwise.
On the day of the clean, their team was at the house right when they said they would be, and brought all their own equipment, which was also very helpful.
Overall, the quality of their work was very good, and the house was cleaned very well. However, there were a few areas, specifically in the kitchen, that weren't done quite as well as we would expect for the price paid. For example, there were some difficult to see areas in the cupboards that were not cleaned well and had food and other bits of things left behind, which we easily spotted when putting our things away. This would have been caught if they were checking their work a bit better. We also noted that the kitchen light fixture was not cleaned, despite the assurance that every small nook and cranny would be addressed.
We contacted Maret to point out some of the major deficiencies, and appreciated that she was very open to our comments and even refunded us for some of the items missed.
The clincher to this is that I'm not sure what the house would have looked like if we'd found a cheaper service to use. It likely would have been worse, with more areas missed. We were generally very satisfied with Maret's work. I would recommend to people using this or any service to set aside time at the end of the work day to do a careful walk through of the house while the cleaners are still there, to make sure that you're satisfied with their work, and to pick up if they missed anything, and can thus have it dealt with on the spot.