We have a 6848 xw pro. Have had it running for 3 years or so. My one complaint is related to grid support. Over the years I have spent many tens of hours on the phone with Schneider (Who has VERY knowledgeable support) trying to diagnose the issue, and while it has gotten better, we've never fully resolved it. Basically, in grid support mode, we had frequent faults (Grid voltage too high, grid voltage too low, grid frequency too high, grid frequency too low) that would cause the inverter to enter pass-thru mode. 95% of the time, it would go back into Grid Support as soon as the fault was corrected, but sometimes (At least once a week) it would enter a fault and not exit, leaving the system in pass-thru mode, with the only correction being to fully restart the system. Aside from that, it was a beast, and a heavy piece of equipment. Comparing it to something like the EG4 6500 is laughable (Weight-wise). I know because when I received our EG4s, I couldn't believe how light they were. Just my Schneider MPPT weighs more than the EG4 6500 all in one. It's nuts how overbuilt the Schneider equipment is.