Mine latest one was actually 2 years ago, not last year, for the first floor (above basement, under upstairs). Below is what I got for a little over $5K. I haven't had any issues, yet.
Downstairs Equipment:
Ac 4TTR4030
Coil 4TXCB003DS
Furnace TUDIB080A936
Warranty:
Home comfort will give two years on the labor.
Trane will give ten years on all the parts including both coils and the compressor. The heat exchanger will have twenty years from Trane.
My upstairs was done about 10 years ago by Casteel, but I can't remember the cost (more than $5K, I know that). In year 9 I had a problem, that they came and fixed with no problems (10 year warranty). Casteel quoted me ~$8k for the downstairs unit ($12K minus $4k), which was Trane, VX80 (heat), XR14 (cool; 2.5T), but with a 10 year warranty, but I couldn't justify the extra cost for a warranty I may or may not use.
EDIT: I may have paid a bit extra to get the super filter system (uses a massive air filter that only has to be changed once every 9 months). As with anything convenient, the filters aren't cheap.