v e n t i l a t i o n and material of the Hilleberg tents is not reached by any other brand.
I'm sure they are quality, just as I am sure if I looked I could find an even more quality option that cost even more, but that does not mean the likes of BA, Eureka, Mountain Hardware, Marmot, REI, etc are cheap and that if you buy one, you are immediately going to regret not having a Hillenberg.