Very impressed with the 2-man one we got- from Decathlon- and it is instantly erected! Bought a 4-man one on the strength of that, so we shall see at Warwick how that gets on.
Was concerned whether it would be waterproof, but it kept out a heavy downpour. Dual skin too, so as warm as a normal small tent.
Other peeps on campsite were dead impressed at speed of erection. Not so quick to put away though, and it does require a certain knack- similar to Giok's description (these are not two-piece poles, Bee) but not as simple as a plastic hoop as it has an inner and outer tent attached.