Moved to this new apartment and quickly noticed that the ventilation was musty and found out from our apt manager that they never clean them out. I went with the full package which involved running the drill with the wire brush attachment along the ventilation to loosen the dirt/debris, a thorough vacuuming of each supply vent and the return vent, and spraying a plant-based sanitizing solution through the return vent.
David did a great job and explained the process step-by-step since this was my first time using this kind of a service (even though he's likely had to explain the same things hundreds of times over the years). I am satisfied with the service performed - David was thorough and even cleaned up after (vacuumed the floor of the supply events after finishing).
From my experience there are a lot of companies that will inspect your HVAC system but only a few that offer the ventilation cleaning service as well. From my experience apartment managers inspect and maintain the coils to ensure the AC system lasts but won't clean/sanitize the system or vents, which from reading online is pretty important for efficiency of the HVAC system and for air quality. So, overall happy with the services offered and provided by Arizona Air Cleaners.