Pricey but...
The bread slicer is quite expensive. But, after using a very, very sharp knife to cut my sourdough bread for almost a year using a caddy to hold the loaf in place that had different slice widths, I felt like it was only a matter of time before I did serious damage to one of my fingers. I play the guitar and figured better to buy this bread slicer than cut my finger to the bone. In short, the slicer works perfectly and my wife is much relieved that I am not using the knife any longer!