We've found that screen rooms are a kind of a pain unless camping for several days. The ones I've had experience with take quite a bit of time to put on, and then the piece that has to go under the trailer and around the steps, etc, is *really* a pain. So we prefer to use a separate screen house instead if we are camping for extended periods. I personally use a lot of repellent and do without the screening usually, but we camp frequently with someone who seems to be allergic to every kind of repellent there is, so then a screened enclosure is almost mandatory if the ticks & mosquitos are bad. We have to worry about Lyme disease, etc. here in the Massachusetts area, and we do dry camping a lot at state parks where there is a lot of wooded terrain.
I don't think this helped you much, but.......Sorry