I had a system installed by GR8 Energy about 6 years ago. They never hooked up my SolarEdge Monitoring. I had the system checked out by another company who informed me that I have panels that are out, but there is no way to tell which ones and handle a warranty repair due to the fact that GR8 Energy never setup my monitoring. I have contacted them close to a dozen times over the last 6 months to try to get this rectified and they continue to put it off and make excuses. I am likely going to spend north of $1k getting another company to come map my system, connect it to SolarEdge and identify the panels that need replacement.
In addition, immediately after getting the system installed, I asked if I could turn it on, they told me to go ahead, which ended up costing me my LADWP energy rebate that was somewhere in the neighborhood of $10k. To be fair they split the loss with me, but could have been easily avoided had they known how strict LADWP was about their rules.
As far as I know, this company is run by two people (husband and wife) and not really setup to service and support much business. Nice people, but terrible execution and service.