Mitsubishi and Panasonic recommended by my aircon man. Using Mitsubishi myself so far so good but i only use it when needed.

Mitsubishi Electric. Their aircon features are very minimal.

Mitsubishi air cond do not have that. As i said, their aircond is very feature minimal which could be a selling point.

Panasonic i heard better to buy their more expensive models as they use better parts. Not sure how true is that.