I have one, with the nest.
The nest gives it a rather odd shaped sleeping area that is difficult work out how you should use it. I also find it tricky to get the nest pitched properly, it always seems to end up touching the outer, and I spend more time than I would like, fiddling to try and get it right. The seams leaked when I got it, now sealed and fine, and the cover for the air vents are too small and vertical rain blows into the tent, but I think has only been a problem twice.
The steep slope of the sides means there is far less usable space than you think, and for the same reason , you don't need to be too tall, before you can no longer stand up in it.
In spite of all that, I like it, the space and height make it a really nice living space for two adults with very little weight. Its also been in some really bad winds. For the weight, there is nothing out there that can match it, and its well made.
If weight (and money) wasn't an issue then I would buy an Exped Venus III.
A couple of pics
And with a DD tarp as an awning
Both pics near Tintagel
Graham