Yes, actually, it does not matter where it gets manufactured/assembled. May be affect a bit but not much. Other than service, i think it is the design that matters and the parts that they "choose" to use. I think most of the time, air con or electronic appliances break down because of spare parts defect and rarely on the assemble. (unless if the air con is broken because of improper assembling, that is another story. Rarely that happen because it would look very obvious)
Other than that, China parts does not always equal to low quality too. It is depending on what parts those companies choose to use. Cheap parts = low quality. Some companies want to lower down their products selling price by using cheap parts. (happens all the time)