Seems to get good reviews from the Argos site.
Get half price LEDs tent lights with this for a total of £40.36 (Look at the special offers on their page)http://www.argos.co.uk/static/Product/partNumber/3402210.htm
2 air vents.
Ring and pin system.
Colour coded poles.
2000mm hydrostatic head.
Size of tent overall (H)130, (W)310, (D)240cm.
Packed size (H)18, (W)70, (D)36cm.