My bread maker makes very large loaves of bread. Very TALL loaves. As a result, the slice dividers don't quite reach the tops of my loaves. I get around this by simply being careful since I use an electric knife to slice with. Other than that one small issue, this works great as a guide to slice bread with. I definitely recommend an electric knife as well - electric knives go through bread so much easier.
This is very fun Knife. It works great with Pb&J. Allows you to get enough the first time and the teeth are great at cutting the bread but not sharp enough to cut the kids hands! They Love it!