We just received our new WGen5300v. Everything seems to run well. I will know more when the power goes out for a day or more. We bought it for the price and the hours it says it will run ( 13.5) without having to refill every 3 hours like our old one. I gave 4 stars since we have not used it for a long period of time as of yet.
As a female who is not very good at mechanical stuff, I would say this is fairly straightforward and so far so good. Assembly was easy although the model is hard to move until you get the wheels on. Adding oil is easy enough although the place to add the oil is kind of recessed and you will have to be careful to not strip the threads on the plastic funnel. Start up with the electric start was easy. The generator is loud but I believe they all are. I haven't used it yet in an actual power outage but this should have plenty of wattage to handle my frig, a few lights and my microwave. I will probably have to turn off the electric water heater but that 's okay. I do like that the box gives you the approx. wattage for different appliances. We have frequent power outages so I am excited to use this product.