where can I find a tent like that and do you have any issues likes or dislikes?
Google "roof top tent" or "RTT". There are several manufacturers.
Advantages:
- keeps you off hard, rough, or muddy ground;
- bedding is stored in place so it can be much thicker/more comfortable;
- most can be assembled in the rain while keeping the interior (and stored bedding) dry;
- keeps you away from four- or no-legged nasty critters;
- they can be small to quite large with overhangs, and some include enclosed and covered space at ground level (basically a 2-story tent).
Disadvantages:
- they are still somewhat rare in the USA;
- they are crazy expensive;
- you need a full flat roof rack to support one, which is also expensive (I think);
- it's sitting in the full sun all day, and is above a hot vehicle, so it can be hot on summer evenings;
- they add mass (rollover) and wind resistance up high;
- unless you are male you have to climb down a ladder to "do your business".
I want one... but I currently don't go camping enough to justify it, so it's way down on a list of things I want more.