I bought a second i gen 4500 to hook up for parallel power to get 50 amp. I still have to stage turning on 2 ac units despite the 50 amp paralleled power. It runs a bit rougher than the first one. Trips the breaker evey once in a while. I will take it to the service center and see what happens. The biggest issue is having to change the oil every 50 hours. That is not convenient to do while camping. The access panel needs to be bigger to allow for an easier change of oil.
I bought this unit a couple weeks ago. I wasn't expecting such a fast delivery. I will use this unit for my food truck. I'm current putting things together and actually will not use it until then. But, I did start it and it sound great.
I've only had this 2 weeks. I wanted the dual fuel and remote start features, both work great. I've only run it about 6 hours and it does everything I want. So far a great unit.