Love these lights!!  Beautiful and sleek, but capable of holding a high enough wattage bulb to really illuminate a work surface (I had them installed over an island).  I can't speak to ease/difficulty of installation since an electrician installed, but he didn't seem to have a hard time with them.  I did change out the switch he used for a dimmer switch and they work great on a dimmer (just make sure if you're using LED bulbs that you get a dimmer switch that's LED-compatible).