I work in the area and I have been to Macaron Cafe a few times since it opened. When it first opened, my coworkers and I were very excited because French Macarons are one of our favorite desserts. We tried many flavors the first day it was open including, nutella, dark chocolate, wedding cake, rose lychee and white chocolate peppermint.
My personal favorite type of macaron is classic chocolate so the dark chocolate was my favorite here by far. The wedding cake and the white chocolate peppermint both had sort of an artificial flavor to me. The sheet that comes with the macaron's says to let them sit at room temp for a little bit but I prefer them chilled out of the case. I have found out that if you refrigerate macarons they get very stale and gross on the outside.
Overall I feel that Macaron Cafe is just okay after sampling quite a few of the flavors. I feel as though it has quite a bit of hype right now because it is new and different but the macarons are really just okay. I have had many better macarons in Vegas and elsewhere.
Service is also not the best which always knocks down a star in my book. One of the cashiers that helped me out last time, snapped at me because he said that he was helping someone else before me which I was not aware of. Rude.
I would come back for a treat here once in awhile but there are a few other places nearby that have better dessert offerings.