Quoting what several people told me when I asked a similar question (see "Best" Lighting Solution) - because it just works.
Since I posted that question and was convinced of the value I have replaced almost every switch and dimmer in my house with Lutron Caseta and installed two Lutron Caseta Pro hubs. All of it just plain works. Day in, day out. No drops. I also like that my electrician can service it if something happens to me (old guys sometimes think this way).
