They came in right on time for 2 site jobs( back to back). Very professional, showed pictures of before and after including videos, asked for permission before drilling, capped everything once completed and checked with me if I was satisfied and reviewed the work done room by room.
They were thorough enough to find a bottle from the 90s in the vent. Something previous providers missed.
Based on previous duct cleaning experiences with other providers; these guys work was great. Best bang for your buck.