Inverter has built-in safety and automatic reset features that some competitor's products do not have. Easy to understand and set up. Mine is installed in the basement as part of a sump-pump power backup system and has been "on" for months and ready to kick in when needed in case of a power outage.
Have it attached to three Deep Cycle Marine Walmart batteries (red to red, black to black) and I'm very satisfied and recommend it highly. Great price doesn't hurt either!