I went with a group of 5 adults in Sept. At end of trip, took of vote of our favorite restaurants. It got one vote. We all liked it, but some liked others better (The Wave and Artist Point got 2 votes each for what it's worth).
Details: Nice, grown-up atmosphere - we did not see any kids except a baby in a stroller, from which we did not hear a peep. Good service. I would not order the duck again (waiter recommended it because his family raises ducks in the same region or something) - they had not cooked the fat off and it was kind of gummy. The beef tenderloin was a hit (should have ordered that, but wanted something more "French"). The dessert sampler with the creme brulees was also a hit - esp. the rice pudding creme brulee. We had a late reservation but did not feel rushed. Some people could see Illuminations - we could not, but a nice party invited us over so that we could see from their table. We did not finish til well after park closed - in fact, we were the last ones out of Epcot that night - the nice party was just a couple of minutes ahead of us. While we missed the last busses to our resorts, Epcot CMs made sure there was a bus to take the two parties to our resorts; luckily, they were at Poly and we were at WL, so not far apart!