We have these over our breakfast bar and they look stunning!  The glass is delicate and because of its proximity to the inner shade, tricky to clean.  Since they're well away from the oven and the hob, they don't attract the grease and dust that most surfaces in the kitchen seem to attract.  

I wanted them to give off an ambient light, not a blinding light so I ended up buying 25w bulbs for them.    We had to tie them in with the mains undercupboard lights so using a dimmer was not an option.  They look outstanding and provide real character to our kitchen.