I had 2 Haier units put in in October (separate 2 ton compressor for each head unit). Cost me about $10k and took 2 days. Did not connect it to existing heating systems, didn’t run any ductwork as I have a fairly open floor plan.

No complaints with the units. My electric bill has gone up, of course. The electric increase plus my payment is about break even for the winter months compared to using fuel oil. I do turn my furnace on if the temp are staying in the teens, but I’ve only used half a tank this winter.