Me, too. I also use it with Apple Music, to check Sports scores, find out when teams are playing their next game, check the forecast, finding photos ( like saying "find my dog photos"), etc. I also have an Echo, and it works great, but it isn't on my wrist like the Apple Watch, so it isn't as useful when I am away from home or in a room without the Echo, or out walking the dogs, etc.
My main issue is that it sometimes isn't as snappy to respond as Alexa. Also, it doesn't have third party skills, like SimpleControl or Plex, that I also find useful. However, I also use Siri all the time, so I can't really complain.