If you want to go to Yuma, if it is anything like years past, you need to get reservations because lots of folks like it. Several years ago we tried to get a place to stay in Yuma and had to stay in Wellton AZ. Don't remember the name of the park which was not great, but it did have friendly people and we liked it for the two weeks we stayed. Lots of people paid the annual rent for their spots. Yuma is not an arm pit but different people have different tastes. I would judge the individual people who have the opinions rather than the city.