Final count on points of view in my novel is 27. Too many? Not enough?

Near the end, for numerous excellent reasons, I switched to first-person POV a few times — including a couple of sections using first-person present-tense, which I’ve never done before. I think a little of that goes a long way — “I sit in a darkened room and ponder the mistakes of my life. I wonder what will become of me.” But I decided it was right for what I was trying to accomplish at the end of the novel. We’ll see.