Ones I've tried so far Repco died prematurely, one bought from Aussie Battery and Solar which was their brand and 3000watt was the best inverter I've ever had , had a remote switch but you could leave it on because it used next to nothing on standby .
Had it setup in the front hood of the van via a suicide lead and was so handy until I forgot one too many times to unplug it before hooking up the main caravan power cord and blew it up , can't get the same inverter anymore and the one I have at the moment also a 3000watt doesn't get used because of the massive power drain just on standby .