AC Install Recs

Just got a quote from a local AC company and felt a little scammy after they left. I'm talking a large $$$$$ decrease in price with no back-and-forth or negotiation after we said their initial quote was too much.

It was also presented a flat rate cost instead of a cost/unit or size of unit price. So a home with 8 bedrooms would seemingly have the same price vs our much smaller home.

Anyway, feeling weird about the whole situation and looking for recommendations from others.

TYIA 💚