I've used Haier (non-inverter) for almost 2 years. The cooling is acceptable but, its not that good. Now replacing it this summer with either Sharp or Gree. Other brands like Daikin, are way expensive.
As per one market shop, Split AC brands are placed in 3 categories roughly by their performance and overall value for money:
Category-A (Top of the line; the best parts and performance)
-Daikin
-General
-Mitsubishi
-Panasonic
............etc
Category-B (Good; Better parts and performance)
-Gree
-Sharp
-Acson
-Orient
..............etc
Category-C(Fair; for low-budget; relatively low quality parts and fair performance)
-Haier
-Dawlance
-Kenwood
.............etc
It's mostly the misleading marketing like ....."pooray BTU"...etc, etc.... which customers often gets attracted to and forget that in overall usage life of split AC, a good brand will rather be more savings.