I went to Petrus for lunch earlier in the year and thoroughly enjoyed the experience. I would rate it as the second best restaurant I have been to, after Le Gavroche. We didn't go for the set menu but everything that we ordered was well executed, beautifully presented and enjoyable. The staff were welcoming and the atmosphere was relaxed. Because of the Michelin Sat status, I expected the restaurant to be slightly clinical and potentially pretentious however it was the complete opposite. The was a homely feel about the restaurant, helped by its location tucked away off the main drag. I would definitely return.