Switzerland may be famous for many things and among them cheese and chocolate, but the concept of a Swiss restaurant has never become entrenched, and certainly not in London. Maybe it’s because the long-established (and still much-loved by many) St Moritz restaurant on Wardour Street has become a beacon of Swiss kitsch, with its chalet-like interior, gingham furnishings included. Heritage, open since July, takes Switzerland into the 21st Century, a perfectly-pitched offering that has the potential to endure.