I was pleased that Juan left a voicemail message announcing his pending arrival, arrived in the time range promised, completed his service checklist, then cleaned the coils and removed pad level debris from the outside unit. When I if Juan could add anti-rust tablets to the condenser pan, he said he could add them for a specific price, then did so. However, before leaving, he informed me that my out of pocket cost was actually less due to this being a prepaid service call.