Mine has been up is a dc coupled and ac coupled mode. Had a few issues solark support was quick to help with and resolve. The grid sellback setting is a little inaccurate. I am allowed to sell back 10kw. When set to 10,000 watts I was sending back around 10,600, with periodic spikes up to 14,000. Support lowered my sellback setting for now to avoid issue with the local power company, and expect a firmware update to correct the issue in the future.
They have indicated everything works better with a battery. - not required, just smooths everything out.
Do not have a way to measure actual fan noise, but it is not audible in the next room. It only kicks on when the inverter is passing more than 9kw for 10mins or more. Runs for around 3 minutes, shuts down for 6 or 7, then runs a few minutes to cool the inverter. The cycle can only be heard standing in the room with the inverter.
The info in the PV pro app is much better than the solaredge app for my AC coupled array. It does NOT match up with my multimeter. My monthly usage numbers from PV pro also do NOT match the utility bill. Discrepancy of around 12-15%.