I have a Tepui on an M416 trailer that I modified so the room that attaches underneath it would fit. The mounting rails are a little over 6' off the ground. You will need roof rails that can hold over 400 pounds to put it on the jeep. I needed the extra room so I had a spot for the kid to sleep, it could easily fit 2-4 people for a total of 6. One afternoon in BV, I think there was at least 8 people in there getting out of the storm.
If you don't need the extra room, and just set up the roof top tent(RTT) itself, it's really not that much more convenient that a regular tent, imho. I'm not fond of it, and I am ready to sell it. Some of it is the 2" foam mattress, that was fine for my first 35 years, but not so much now. I like air beds.
I've used it 4 or 5 times. It's in good shape with no major issues. The mattress cover is clean.
I do want to sell it, so I guarantee you won't find a better price. I bought it online from Bass Pro. The shipping was over $100, but it was the best deal at the time. I checked recently and the prices from Tepui have come down, lots more Chinese factories making them.
This fall, I'll be parking the trailer on the parkway with it set up and a for sale sign on it. If you are really interested, after COfest, we can talk about a private showing.