I agree with Cancanmum. Those lights are more for aesthetic purposes rather than practical purposes. It's very hard to maintain & not worth the effort. Kitchen should be minimal so that it is easy to clean. Even for my kitchen ceiling lights, we chose the minimal cleaning needed type. Else you spend more effort cleaning up the kitchen!
So far I dont't have problems with shadow casting on the work area as the light we bought adequately covers the whole space. Unless the position of your ceiling light is not adequate then you'll have problems with shadow (like in my mum's kitchen).