If you've never owned a ceramic knife for use in the kitchen, do yourself a favour and buy a 4" & 6" at least to start.
They are cheap on eBay, you can't sharpen them (at least not easily) and I just buy a new set when they start to dull in 12-18 months.
They are like razor blades, I would never go back to using a carbon or stainless steel knife again regardless of the brand or quality.