I repair the air conditioner. At present, Gree is widely used in developed areas of China or in the homes of the rich. Other domestic machines are of poor quality and few people use them. The main market is in underdeveloped areas or rental houses in the mainland. Mitsubishi and Daikin Hitachi are out of date, the quality is not as good as Gree, the price is expensive, fewer people use them, the after-sales service can't keep up, the reputation is getting worse and worse, the price is much lower than before, and then the quality is also reduced, forming a vicious circle. There is basically no market in China, and Gree has grabbed more than half of the international market. Gree's position in the domestic air-conditioning industry is equivalent to Nokia's position in mobile phones more than a decade ago, or Apple's mobile phones now have no competitors at all, and the technical content is also the highest. Take installation as an example. It takes at least half as much man-hours to install Gree air conditioners as other brands. Every important link needs to be photographed and uploaded, and also needs to be vacuumed (other brands, including Japanese machines, just need to put snow seeds in the air). Only when each step is qualified will the power-on password be sent, and the power-on can be officially started through a special unlocking remote control. Unlike other brands of air conditioners, there are often many problems left in the installation process. The same is true after sale. Gree stores and after-sales service points are everywhere, but there are fewer and fewer other brands. The main reason is that the quality can't keep up. So, if you have the money to choose a slightly better air conditioner at home, forget about other brands besides Gree. Buy Chigo if you don't have much money. Among the brand machines, Chigo is the cheapest and the quality is ok.