I've got a Saunders Jetpacker (not Plus)
Pole sections (A-pole) are 34cm
Packed diameter approx 12cm
weight approx 1.5kg
I'm 6'1". Sleeping, I touch the ends of the inner, and it's a bit like being in a coffin. If you want to cook in the porch, you have to do it propped up on one elbow.
It also needs decent pegging ground to withstand bad weather, but if it's got it, it's quite sturdy.