Hey there, CW,
Like you I'm on the market for a new tent and have been drawn towards Vango as well, though I have to confess that I have no experience of them.
I like the look of the Spectre 300, though it is a little big for my needs, and so prefer the Spectre 200 - it's on the Great Outdoors site for only £69.00 - which seems to be a right bargain.
Personally, I'm after a no nonsense tent, the smaller the better (kind of opposite to you), but let me know if you come across any other Vango that you take a liking for.