I purchased a 10kW split-phase model. I am pleased with the service that Cassie provided. She made sure that the order was properly composed, made arrangements to get the order shipped very promptly (within days of receiving the payment), followed up to make sure the order was loaded on the proverbial boat from China and notified me when the boat was about to arrive (I think it was) in LA.
The unit arrived wellpacked and turned on and was operational out of the box. If you plan to use these split-phase inverters stateside, make sure you check and properly configure the bonding of neutral to ground as per code.