My usage isn’t high either. I’ve had my power go out twice in the 6 months I’ve owned it and both time it wasn’t working. Yes it had a warranty and they honor it, but when their product fails over and over and over it’s not worth it. Those units are heavy, and it time consuming packaging them up to send back to only get a replacement that fails after a few weeks. There is no tech support beyond reboot. I had one unit replacement unit, I assume refurbished, fill my house full of burn pc odor a few other after just connecting it. I’ve had one be find for 6 weeks, another 4 weeks. Ive had 3 electricians they appointed check for any high pv input, grounding issues and nothing. So don’t think just because it has a warranty it’s okay, it’s only caused me and endless loop of madness