DISCLAIMER: If you're planning a bachelorette, the Wynn sets up awesome packages for you and your girlfriends. Jardin was one of the restaurant options that we chose so we dined here on a pre-fixe menu.
The restaurant is decorated with gorgeous fresh flowers (one of the things that the Wynn is known for) and the ambiance is intimate. There wasn't anything really to rave about the food except for yellow tartare, avocado salad and the pretzel sticks (all appetizers). I also liked the flower pot chocolate dessert that actually looked like a flower pot! We enjoyed the Moscow Mule cart a little bit too much, and they happily provided us to go cups for the excess cocktails we weren't able to finish at the table.
The service was friendly and attentive during our experience here. They were accommodating to our requests (to go cups, to go boxes, more napkins, etc.) and they didn't have any issues with how we wanted to share our entrees family style.
I would give give Jardin another chance and try their regular menu the next time I stay at the Wynn.