Yes, there are numerous choices in the Union Square area for lunch, and Rainbow, since it is takeout only, might not be the best choice for anyone who wants to have a sit-down meal. However, the falafel sandwiches are so well prepared that we might have to say they are the best we have ever had. On a nice day, it was the perfect spot to grab some lunch, sit outdoors, and enjoy the sunshine, the passersby, and some delicious falafel.