I'm doing both because I already have the AC Coupled system. When I do sell my current house, after I can finally find some land, I will revert the solar system back to the Schneider and take the Sol-Ark 15k, EG4 batteries and DC coupled solar with me.
I have not mounted or connected anything just yet. Getting everything together before I start to tear things apart.
Currently I have an AC coupled 8.41kW system paired with a SchneiderXW+ 5548 and 8kWh of AGM batteries.
The new stuff is going to replace the old stuff and I will retain the AC...
As far as Will's videos when he hardwires an electrical plug into the AC side of an inverter there are a couple of things to keep in mind...
#1: The outlet itself is grounded and he uses a three prong plug which has a ground (in the US)
#2: The outlet will, itself, be wired into an AC breaker