This is a well thought out design. I bought it to use during power outages so I haven't been able to fully test it yet but I did hook it up and was impressed by its performance. It is easy to use so I will be able to run the microwave and sump pump and keep some lights on if the power goes out.
Not too heavy. I like that it will work with 1 to 4 batteries, it recharges and maintains the batteries, has an 80 amp fuse and can be set up to use solar panels.