Their service is not always the best. The staff don't speak english - most of them speak Spanish. However, if you point at food on the display, they will get what you want. If you want hot or cold beverage, you would probably have make gestures. For instance, if I want a small cup of orange juice, I always point at the orange squeezer then ask for a small sized cup.
Their food is delicious for breakfast, but when it comes to communication, it's a bit tough especially when they don't speak english. I always get my way out by gesturing and thankfully, they were patient and they respond in pointing at a lot of things. :)