Point of view is the vehicle that drives a story. Get it right, and your novel hums along smoothly and your reader never notices.
Get it wrong, however, and your book becomes an unbearable clunker rife with confusion.
Shawn Coyne, author of The Story Grid, has read a lot of critically acclaimed and successful books, and noticed something about their point of view. All of these books used a specific style of narration, and you can use it too.