I've been to Soba twice and it was my first real experience with "upscale" dining.
The inside is great, I was especially fond of the two story waterfall against one wall. The seats were comfortable and the pace of the service let you know that you could stick around a while and enjoy yourself.
The food isn't as Asian as I expected it but still delicious. I went with the filet mignon and it melted in my mouth like butter. The sprouts on top gave it a nice, fresh crunch.
The service was spectacular, as it should be for this type of establishment. My only real complaint is that after having been to Kaya and Eleven, I feel Soba could diversify their menu a bit. A few of their dishes can be found on its brother's menus and I don't think they're quite capturing Eastern food.
Either way, it's delicious.