Many people trip with car roof tent, and how about your feels? I will share my like and dislike for you.
What we like about it:
The comfort, the breeze.
When camping for a longer period of time I don’t have to clean up the mess inside the vehicle each day because I need to make the bed.
The chances of ants, scorpions, snakes or other creepy-crawlers entering the tent are zero (this compared to a tent on the ground).
It’s a great spot for viewing wildlife. We especially experienced this in the wetlands of the Pantanal where we would wake up for sunrise and watch all the birds and other animals approach the water for breakfast and a bath from a much closer range than had we sat outside.
What we don’t like about it:
We were not impressed with the durability of the mattress (replaced in Vietnam after 3 years with one that’s still fine 8 years later, see below).
The mosquito netting doesn’t properly close in corners (we stuff them with old T–shirts).
Serious leakage problems after 4 years.
We really love sleeping in the roof tent but we are not so sure about the price-quality ration.