"You don't see the prose, you see the story. The prose is a window, beyond which all these wonderful things are happening. If you start fiddling with tense, people pay attention to the window instead of what's happening beyond it."
Writers are creative people who enjoy experimenting with words and techniques. (I would guess most of us have an attempt of a second-person novel stashed in a drawer.) But we want to be careful that we're not so fresh and different that readers are unable to see the story.
Have you ever tried out a technique in a manuscript and later decided it distracted too much from the story?