Lovely, classy Gazebo from Clas Ohlson. Seen them in-store and they seem pretty good quality. Nicer than the ones in Argos and more like the sort of thing you'd expect from John Lewis.
Description from site:
Polyester with water-repellent roof. Strong folding metal frame. Size: 3x3 m. Blue.
Can be supplemented with Side Wall Set 31-3895-1 consisting of two wall panels and a mosquito net.
Has a 2 year guarantee too!