I've never heard of Jack Wills before. Just checked out the clothing from its website and it looks like an overpriced version of Abercrombie and Fitch or even Primark, so it's really bad.
As for the price, well it's not too expensive, but definitely not worth paying because it looks crap the clothing quality is non-existent. This type of clothing does not even come close to that of bigger designers, so if this is what people with money spend it on, then imo, it's a huge waste.