I think that somehow we are getting used to all these designer collections for high street stores. It's nothing special anymore. Just because it has a designer name on the tag, doesn't mean it's an item of clothing that suits you. Personally I'm getting more and more selective about the clothes I buy.
I mean, the Matthew Williamson clothes look like fun summer clothes, but I think the bright colours and the prints will look dated very soon. So personally, for those prices, I rather buy something else.