It's been about 2 months since I got PTO and system has been working great. Found ArtGreen through EnergySage marketplace and they had the best proposal and price, offering high quality panels and inverters. Did a bunch of research on their company and could only find good reviews about them. They were even mentioned a few times by redditors in /solar. Only con was that he had a minimum of 7.2kW install, which was a huge oversizing for me. But now that I found myself using the heater a lot more (and probably the a/c in the summer), 7.2kW might not be enough lol!
Haim is a man of few words. He didn't try to hard sell at all, unlike some of the other companies that I quoted from. He is very prompt in responding to emails and answering any questions I had. Other than the long wait in getting an install date (since everyone was rushing at the same time to get into NEM 2.0 so understandable all solar companies were backed up), didn't have any hiccups at all from start to finish.
Haim and his crew did the work efficiently and helped me navigate the process for installing solar and a battery system.
I highly recommend them for anyone in the San Gabriel Valley