We have the Kampa Pop Air but only use it if pitched up for a week or so. This has usually been the case for us as fully setting up an awning, carpet, all the gear etc usually takes an hour even if you have mastered the art of the awning in 35 minutes. Packing away is longer and on a few day break it eats into your timr. We are currently sitting under our open fronted Sunncamp Swift in a wet North Wales. 10 minutes to set up. We use this for short breaks or an Isabella Shadow if it's sunny.
If the fronted version had been available at the time I think I might have gone for that. I don't particularly like the rip stop nylon type fabrics but they are perfect for this situation.
My advice would be this and the Isabella. With a total combined weight of about 10kg you can leave in the van all of the time. You could then keep an eye out for a 2nd hand bargain full awning for your rare longer pitch.
Colin