The generator is very easy to turn on. It is just turning on a switch. There are 2 ways to turn it on. One is on the outside on the generator itself or if you prefer you can turn it on in the coach. There are 4 switches under the radio. One of them is a remote startup switch for the generator. Press it and hold till generator starts. You must turn off both air conditioners until the transfer switch kicks in then you will have power to all appliances. Including running the air conditioners on the roof. I have been told that there is a delay switch on the roof top units that if properly set would eliminate this step of making sure the roof top unites were in the off position. We found running the air units were needed when we went to Florida last month in 100 degree heat while going down the road.
As for how long will the refridge last is a good question. Our batteries lasted only about 4 hours then the inverter turned off but the refridge stayed cold almost over night. I might just time how long it stays cold on an off refridge., and will let you know. My wife may think I'm crazy but what's new.
If you find this to be an issue you can purchase automatic generator starters when the batteries get low but they are between 3 to 4 hundred dollars.
As for towing a small car it does it like you don't even know it is behind you. We have a 2008 Honda CRV and the first time we towed it I turned on my rear view camera several times to make sure it was still back there.