Ask any HVAC Tech (that's the person in the van who actually works for a living) and they will tell you themselves. Trane compressors don't last as long as copeland scrolls do. And when you live in a place like Texas you cannot afford to have a compressor go out in the middle of a Texas summer. If you pay money out of your own pocket for a Trane product, then you love throwin money away.IMHO
my personal opinion after 30 +/- years in the HVAC-R field is it is not really the name of the product ( Trane, American Standard, Westinghouse, G.E., York, Amana, Carrier, Rudd, Rheem, Payne, Nordyne, etc...) but the quality of the installation by the person or crew initially installing the system, and then the FIRST initial start-up of said system.... ie.. making sure the new system is properly brought on-line
as for Trane Compressors...... well Trane is a major distributor of Copeland compressors both reciprocating & Scroll and also re-manufactures copeland reciprocating compressors along with re-manufacturing other Top Brand Company's reciprocating compressors like Emrson, Carrier, etc...... the semi-hermetic types...... and they re-manufacture them to Trane's "Higher Standards"
ever heard of the compressor named "SnowBall" which was a "Trane Climatuff Hermetic Reciprocating Compressor"....... it is legendary........ and the reason they came out with the ad slogan "You can't Stop a Trane" was because of a Tree that fell on a Trane Condenser and smashed the unit all out of shape, big ol tree laying on it.. the tech got there and the unit was still running , compressor, condenser fan, everything without any problems or leaks....... "Wow, You can't stop a Trane!"

also, The other Manufacturer's could not wait and avidly anticipated the day the patent on the "Trane ClimaTuff Compressor" became "unlocked" per say, so that all the other Manufacturer's could start using a similar design....... as for Scroll type / Screw type compressors. Trane has them as well like everyone else, except most other Brands are using a 3rd party compressor part like Copeland, Bristol, Tecumseh, Danfoss etc.....
so to each their own opinion........ but it really comes down to the quality and the abilities of the Person/Crew installing the product.... how good is his/their craftsmanship???

TC