Mini splits have been used around the world for many more years than we have ever seen them here in the states with Mexico being one of them. Most reputable manufacturers use the same compressors across the brands and Mirage has been around those areas a long time. I wouldn't have mentioned the brand unless I know first hand how the quality is and I have had no issues and are very impressed with what I have. I have 4 in my house, 2 in my office and have gotten many more for my contractor to install locally. I also know the local distributor is selling well over 1,000/month and that has been going on for a few years now.
I'm not trying to promote the brand but if you look at the components there are other brands besides LG & Mitsubishi that can save you money and have the same compressors.
Also, as far as I have seen unless you pay a licensed HVAC contractor to install your mini split you void the warranty. Most of the time that can be as much as the unit itself for something that is really simple to install. I believe that LG even requires the HVAC professional to have completed the LG course for the unit to be covered. Read the fine print before you swear by their warranties.