We have a stand alone one...allows us to put the picnic table under it (but not feel crammed against the camper). I think they do make a difference for bugs as well as those days when it rains, but it's not cold out so you can still enjoy the outdoors. Ours took a beating last summer when a pop up thunderstorm rolled through in the middle of the night, so hoping it's still ok! I remember packing up the next day and just tossing it in the back of the truck. We have the "EZ up" style one from Coleman.