I have an Equinox 450 bought in 2010. It is a good quality tent. Good quality flysheet material, zips and general finishing, easy to pitch. The pole sleeves need a bit of use to make threading the poles easy, and its easier with two people. This summer an end pole broke; the powerlite poles are pretty strong but broke in not particularly high wind. Pegs are light alloy, strong enough but will bend, and probably not good enough in hard ground.
Vango say pole breaks are fair wear and tear. Replacements easy to get but they don't give a toss about customer service.