Great food and décor. Really should be 4.5 stars. Best scallop I have ever had.
The only reason I can't give five stars is that I reserve those ratings, based on comparable restaurants, for the ones that knocked my socks off from start to finish. Sage is barely one level below Mix, but Sage is still an exceptional restaurant that you should definitely try. The first time I went to Sage I had the tasting menu, which was good, but nothing to rave about. However, the second time I went there, it was great (especially the scallops - Michelin level good - I would go back again and again for the scallops).
Overall, the service was great (somewhat of a reserved eye roll when they can't upsell you, but it's fair based on the level of dining). You won't be rolling your eyes at the end of the meal thinking that you just wasted money (that was L'Atelier - although it was exceptional the first time I ate there, second time around was not memorable and disappointing).