Our Heil heat pump went out after 19 years, the last few years being expensive. Our replacement decision was based on two things, Contractor history/reputation, and value. We chose our contractor based on prior service, and reputation. They answer the phone in person, and show up same day, and are one of our largest and best known local contractors. We chose the amana aszc 16 which, feature wise, is their top of the line (they do offer the same features in an 18 Seer). We were able to get amana's top of the line for less than some other brands "middle of the road" units. We now have a variable speed air handler (rated 100% efficient by the epa!), coupled with a Copeland dual scroll compressor in the new heat pump. If the compressor ever fails, amana will replace the entire heat pump. all other parts are covered by a ten year warranty (it says so on the warranty itself). We paid a few dollars more to include a ten year labor warranty. The only requirement is a once a year service call for $85 (the first year is free). The heat pump itself has a higher than advertised hspf rating of 9.8. Our house feels better than it ever has. We can control the indoor temperature and humidity independently, which, here in Florida, is important. We can digitally view the indoor temperature, the outdoor temperature, and the indoor humidity level right on our thermostat. The unit is quiet, and we are comfortable. So, from amana, we got the best warranty in the business, top of the line features, and installation and service from one of our most reputable local contractors, for a price below some competitors lesser units. I couldn't be more pleased.