My Maytag system was installed 3 years ago by American Home Maintenance. I have had a Maintenance Contract with them since "day one." Now Orangutan Home Services, they faithfully call me every year for the maintenance review. The review, unfortunately, becomes just an opportunity to sell me more "stuff." Now they are giving me a complimentary energy audit, but of course there's something they found that would cost upwards of $2100. (New insulation.) The real kicker was that the tech found that my fan was out of balance in the attic, and he installed a new "cap." He did that without my asking, and the appointment itself was at THEIR request, not mine. He proceeded to tell me that he installed the cap, and that it would cost me $220. What?? You installed an item of that cost without asking? He responded, "well I could take it off if you like." I said the real problem here was that you didn't ask me beforehand." He agreed, and lowered the cost to labor only - $30. So, is this review really just to see what they can ding us with? Apparently so. Now back to th insulation - he told me the cost, and said "I can get someone here within 48 hours." I said "well, I can't get $2100 pulled together in 48 hours, so I'll reivew it and get back with you." He responded - "how soon do you think you can make a decision?" (Wow - these poor techs must be under a LOT of sales pressure, eh?) Anyway, I said "I'll let you know." And he was smart enough to leave it at that. Anyway, they are no different than anyone else in this HVAC business - but beware - their "maintenance" visits are, like all the others, just a sales call.