Bistro was not even remotely romantic when we dined there in November. There were kids at nearly every table, the kids were rowdy, running around, yelling, etc. The waiters were running like mad to get everyone served, the kitchen was running out of food and we went late hoping it would be quiet and romantic. Instead, everyone was waiting for the fireworks, although the view is not good and there are only a few windows. The place didn't quiet down until after 10 -- and by then the waiters were rushing us because they wanted to go home.
We have now crossed Bistro off our list. With that, I have to say there is no where in Epcot to have a romantic dinner.