Have to say I am disappointed in mine. I cannot get it to work on remote, I bought a replacement cable and it still did not work so I wrote to Sterling and asked for advice, detailing what I had tried. Their response was "Your remote cable is faulty"
The three way main switch is ropey, it can take several attempts to get the Inverter to switch on and when left on it will sometimes sulk unless I trip the consumer unit on and off, seems to give it a jolt. It will not charge a really flat battery(s) just goes to error. On generator power the unit continually resets while charging batteries, not yet had the boat in water to test on shore supply or alternator.
Switched to Auto the inverter never comes on, at least up to now using power tools, I have to switch it to Power save off to get 220V out of it.
Since I am paranoid about losing power I am switching the battery charger side to a solar unit, I will keep the Sterling as an inverter only for now but the habit of going to sleep is likely to get old fast once underway and predict a short future for it on the boat. Like an idiot I ditched the packaging and apparently cannot return under the warrantry without it.