I have been using Denver House Cleaning Company | Clean Conscience for 4-5 years now, and it has been a seamless experience. The appointments are scheduled out in advance, but despite this, they are flexible with my time and my needs. Most often the house looks great, and I like the fact that, even though everything looks clean, the house doesn't smell like cleaner. Plus, I don't have to do it myself! I have been using them for years, and I plan on using them in the future, as well.