G. H. Martel was the first champagne house we visited. It did not require any reservation and they offered tasting flights. To sample the flights we were only there for around 30 minutes. This was the perfect amount of time so we could be on our way to the Taittinger cellar tour. We loved the small tasting room and the personal attention they gave, but that could just be because we were the only ones there at the time. Either way definitely worth a stop on your way to Taittinger.