Also, as a new owner of an Apple Watch (had to back out of Fitbit now that Google bought them, sigh, and this was the most interesting option), the Siri integration with the Watch is fascinatingly better than I'd expect and made me much more interested in using Siri more than I had before. The Dick Tracy-ness of talking to an assistant on your wrist is amusing/fun in general, of course, but so far I've been impressed with the range of both the microphone and speaker for a wrist-worn device, and you don't have to do the Dick Tracy style arm raise (though of course, that doesn't necessarily stop you from wanting to; the amusing long tail impact of old pop culture).

(I'm a pragmatist and don't hold closed ecosystems against them. I am on the side that Apple seems more clear about seeing me as a customer than a product or a black box source of data, and that's more than enough reason for me to switch to them over Google [though in my case I was switching from Windows Phone, RIP].)