So why only 2 stars?
The tent has, as seen in the photo, a window. There is only this. Behind the gauze / mosquito screen hides. You can roll up the windows and secure the top with loops, as in many other common tents. Due to the design but finished the waterproof, so you have to sleep in the rain with closed window. Now to my night in the tent: I am 1.5 hours after I fell asleep, woke up panting. I thought that it is because I holed very far into the sleeping bag to escape the cold. So again eyes. Another two hours later aufegwacht, extremely short of breath. When you wake up the third time, the shortness of breath had reached its peak, so I had to leave the tent in panic. My conclusion is therefore that the tent is meant to be used for warm summer nights, or indeed for children to play. However, for serious outdoor use, I would look elsewhere in the future.
Building is really done in a few seconds, degradation took the first and only trial about 2 minutes and was painless. The pack size is not small, but that should be obvious to everyone and did not flow in my review with a. I've just secured with bungee cords back to the backpack. That went well. Just looked stupid.