Living in South La you always need a back to your a.c. unit. We bought three of these units for our house new because they run great off a generator. They were a life savor the other night when after a power outage our a.c. went out and it took 24 hrs for the part to arrive, we had all 3 running in different rooms  and were able to have a good nights rest. 
Easy to install
Easy to hook up
Instruction or simple our 6yr old can do it. 
Sturdy.