No, they mostly have their market in Africa. There are tons of online market places there where you can get spare parts, etc. It's one of the reasons I got interested in them: having a spare parts market like that is like owning a Toyota in Africa, where people make those things run forever. They're almost unknown anywhere else, have an SEO problem due to the name, etc. All that made me even more curious...
As I said, I'm running their inverters and their charge controllers. No issues. There are maybe two or three people I know that also run them in the US and/or Europe (one of them was inspired by my system write-up) and I've searched a lot when I was doing my research.
Edit: by the way, all of this is just my opinion. I'm not endorsing anything. I just share my personal experience.