Got externals with the van but a pain to fit when it's dark and raining and when windy the flapped a bit. Got internals and much less hassle looks more stealth and no flapping in the wind.
Internal are ok for a bit of playing about in the summer but external every time in the winter , where is everyone parking to have to make these quick getaways ?
Are we missing out as all we seem to find are dogging sites !
We use a Leiffheit Window Cleaner long reach pole to remove most of the moisture [2 minute job], then fold the silver screen covers and place them in the shower to dry. Quicker than waiting for the screen to defrost and more environmentally friendlyFor insulation and clear screens in the morning it’s external every time.
But as others have said they require storage, they get wet and have to be dried out, if you have to make a quick get away they would make it impossible, and they can be difficult in certain circumstances to put on.
So I use both depending on circumstances.
Very much horses for courses.