I have one of those Maggiolina Roof Tents on my LR110.
It has to be the best bit of kit I ever bought. I originally wanted a traditional fold out type roof tent, but the Magg came up secondhand on the Land Rover Owner Forum. I paid £450 for it, which is expensive compared to your usual tents, but having slept in it for 2 weeks solid, it is fantastic.
Park up, and the tent is up in (literally) 30 seconds. The tent has a 3 inch thich mattress, which I think is more comfortable than my bed at home, plus the roof part has enough room to store my two foldiong chairs, two tables and the tent ladder. When you're done, about two minutes see it folded back down. It is very rigid in all types of weather, and a lot less noisy than other types of roof tent.
Roughing it, it aint. It is serious luxury, BUT I'm getting older (34!!) and my back prefers it to a Thermarest in a bivy bag!
The best advert I can give is that of all my friends who wanted fold out roof tents now want one of these instead.
Regards. Steve.