First, I highly recommend for tourists to sit either inside or within the glass enclosure outside. I was in front of the glass (on the riverside) with a friend, and we were barraged by the same little kids asking for money, and had some teens shout nasty names.
Pretty view of the river, oudayas, and for watching activity on the pier. I've only tried ice cream or hot drinks here. I like their waffle bowls. Waffle bowlssss