Mom's 12 year old AC finally went south so today it was replaced by a reputable local HVAC business. I was there at the start and came back for the last hour
to help supervise. 
I also salvaged a capacitor and the thermostat.
3.5 ton 14 seer Lennox and comes with a 2 year labor and 10 year parts warranty. She had the same warranty with her last system from the same company and used it on occasion and every time they came out and took care of what was needed very promptly with no muss or fuss.
The techs did a really great job and I will be on the phone tomorrow to commend them to their manager. It ended up being about a 7 hour job - longer than it typically would take - in part because they were very thorough and comprehensive.
Before and after pics......
