Came here with a bunch of friends because of the convenience of staying right upstairs. There is a to go line as well as a sit down area line. Ordered an avocado tomato sandwich because I didn't want to have something too heavy right before dayclub. The sandwich also included fries which were pretty good.
One thing is that there isn't really a waiting area, so all you can really do is loiter around and wait till your order came. This was really ineffective because we couldn't go too far - it would have been better if they had a beeper system. We were told that our order would take 15 minutes, but ended up being 30 minutes. One of the attendants was a tad rude when we asked about the status of our order.
The food was decent and came in nice packaging - paper bag, recycle friendly containers, and even comes with a cute mini bottle of ketchup. The sand which had a good amount of avocados, tomato, arugula, and provolone cheese. Price was a bit steep for $15, but then again, it's Vegas.
I probably would not come again just cause there are so many other places out there. But it is decent enough for if you were to stay at vdara!