I'm also looking into their 6000W inverter. Considering giving it a shot. Wouldn't have thought much of the brand, but a friend of mine has one of their charge controllers (60A I believe). I had built him a LiFePO4 battery so I was messing with the settings; while the interface is a little primitive, as a whole the unit is accurate, well built, and simple (the good kind!). So I went and checked the prices on this brand and I'm pretty impressed - I may start using these for simple solar backups rather than the usual clunky, inaccurate, overpriced stuff from Renogy and the like.
But anyway, that got me looking into their other offerings. Turns out they have split phase inverters from 2k-6kW, 35A grid charging, UPS function, some with solar input as well. They're very well priced compared to anything else (<$1000 for 6kW), and of course I'm skeptical... so imagine my surprise when I happen upon a review where this guy had taken one apart... and sitting inside was gigantic transformer. They are true low frequency! So, yeah, my interest is peaked. Those that have tried them seem to like them quite a lot. Only thing that puts me off is that there's no mention of idle consumption power... hopefully it's not like 150W or something
. They have a storefront on Alibaba, I'm gonna see if I can get some more info. Would appreciate hearing people's experiences, if anyone here has any!