We have used ASDT for cleaning, odor control and water damage restoration at the Marriott Nashville at Vanderbilt for years.
They have done, by far, the best job of any vendor we have used. They are always professional, on time, and above all, considerate of our guests. They perform their services as discretely and quickly as possible and are always willing to accommodate of varying requests.
ASDT is my provider of choice. I would not use another vendor.