Great service experience once again. Have not had a bad experience with any of the techs since the original installation of our unit. Every routine maintenance visit has been a pleasant one. Customer service team is great, always nice to talk to, and all of the techs are well-mannered, easy to talk to and understand. No high pressure tactics to sell add-ons but always there to point out things that we can do to make our units run more efficiently. Not the cheapest I'm sure but if quality means anything to you, don't hesitate to call them - I highly recommend.