HUGE fan of ceramic knives!
I have two and look forward to future purchases. The two I have are very very sharp (my other knives are henkels) and have remained that way for a couple of years now. Yes, you do send them out to get sharpened but for $5 to sharpen three knives (that is to cover the shipping-no cost to sharpen), in my opinion, it is worth it. After a couple of years I still have no need to do that.
I hear they are "delicate" but they both have faired well in my kitchen without breaking. I hand wash them but I hand wash ALL my knives. Since working in my kitchen with the knives, my mother, mother-in-law and good friend have all purchased one.
They are super duper light, which is something I like. If you like a heavy knife you will probably not like a ceramic knive.