Mandoline slicers can be intimidating to use, especially if it's your first time. However, as long as you're being safe, it's a great tool to use in the kitchen. Always stay alert when using a mandoline, and make sure it's on a flat surface. I'd recommend using some cut-resistant gloves or the guard that comes with your mandoline to avoid any cuts or injuries. Remember to go slow and take your time while slicing the sweet potatoes.