The only slight issue may be that customers under 45 are apparently less delighted with garden centre catering than those over 45. My take on this, as outlined at the GCA's conference yesterday, is that as the cafes get bigger and more professional they are losing some of their appeal in terms of personality, humour and quirkiness.
Solution: Read this blog and sign up for a London Cafe Tour! The best have already done so.
Good food is at the heart of a great cafe but I am coming to realise that good design is the way to stand out, be noticed and win the hearts and business of those under 45s.