agree, I live facing west now, buy 0.5hp more due to the hot summer sun.
also many brands do not have enough power as they claim in the manual.
I bought many brands of air con throughout the years, but never 1.5hp. usu. 1 hp or 2 hp.
For 2hp, the worst is Whirlpxxx 2hp, broke down in 2 years. General is doing well. Gree is not as cold as manual claims, I have it checked (split type, not window type) Luckily I bought 0.5hp more than necessary, so it is ok...barely.
For 1hp, panasonic, hitachi, philco, carrier are good. RyoBishi (mitsubixx joint venture) is noisy after a while.