I really like the story so far. I was sucked into it immediately. Something I find interesting about Isabel Allende's style of writing is that you never really know her characters. At least, that is my experience. There is not a lot of character introspection or even dialogue. Everything you learn about the characters you learn through vignettes.
Eliza has not been central to the story thus far. All I know is that she has mysterious origins, a good memory, a keen sense of smell, and remarkable cooking skills. All of these characteristics are pretty superficial so it is hard to form an opinion about her.
I love that Miss Rose, the perpetual spinster, had a great love affair with a Viennese tenor at the ripe age of 16. And Mama Fresia with her Indian mysticism is the comic relief. I also really like Jacob Todd, who, up to now, has been the focus of the story.