A contractor has proposed Goodman 2 ton and 4 ton 16 SEER SSZ16 heat pumps for a friends house. I know the question of how good the Goodman units are has been asked before: they are low end units, the thickness of the sheet metal may not be as great as the better known brand unit, but the parts and manufacturing quality control are good. And something that is always mentioned - you must have a competent installer, but this is true of any brand.
The SSZ16 has an long list of features, such as; scroll compressor, sound blanket, filter drier, suction line accumulator, compressor short-cycle protection, liquid-line filter drier, high capacity muffler, high and low pressure switches, service valves, copper tube coil, etc. See the SSZ16 complete spec sheet on Goodman's website (http://www.goodmanmfg.com/Portals/0/pdf/SS/SS-SSZ16.pdf).
What is the current opinion on the Goodman 16 SEER SSZ16 heat pumps with scroll compressors? What is its overall reliability? Is this heat pump missing features of comparable better known brands for a 16 SEER rating?