I've not had the chance to try the JG in NY like some of the other reviewers. But for me, after living 2 years in Shanghai, this is one of my favorites. And for sure it is 1 of only 2 restaurants on The Bund that I keep coming back to.
Yes, the price is high. So I save it for special occasions. And yes, the wine prices are insanely high, like all Bund restaurants, so I drink little. If the price is your only complaint, then you need to simply stay away from the Bund, unfortunately, they all charge a premium for that view. Doesn't make it right, but makes it a fact of Shanghai dining.
On average, the servers are a 4, but the manager on duty when I was there (Christophe?) was wonderful and helpful. The Kingfish sashimi is so delicious (I would like to eat it once a week) and my dessert with a surprise ('jumping sugar') was delicious AND fun.