Referring to the utility/toilet tents, we have green one similar to the first picture, but much smaller, it's really easy to put up but in the wind I was always afraid that it would break and blow into the campervan and damage both. We now use that with the Dandy because it can be put either side away from the wind, and be sheltered by the Dandy, also it matches.
We also have one exactly the same as the second picture. This goes up really easily, but I would say not as easy to take down, although it's not exactly hard to do. The biggest advantage of this type, is in the wind it just bends, flexes and flops around. I wouldn't like to use is as a kitchen in the wind, but with a Dandy you won't need to.
We use both for the toilet at one side and the fridge at the other, it's also good for storing the chairs etc.
As you can probably guess, it's always windy when ever we go away.