Their Eyes Were Watching God is one of my all-time favorite books. The book is VERY interesting; in particular, it is interesting to watch the characters' growth over the course of the novel.
I will say that this book is difficult to read at first because it is written in rural Southern African-American dialect, which means many of the words are spelled as they are spoken in the south. This can be confusing at first, but if you read out loud to yourself and re-read (three times, if needed!) the sections that are difficult, you should be fine. About 1/3 of the way into the book you won't even notice the dialect anymore!
Yes, it is a page-turner. I think that if you stick with it you will really grow to love the characters and appreciate the book! Keep going even if it gets hard--just ask for lots of help from your teacher and tutors!