Got my Spire yesterday, charged it and started wearing it this morning. It feels totally unobtrusive, which surprised me, although I’m worried that it will slip off my pants. (I know a lot of folks who have lost Fitbits this way.)
Neither the iOS nor Android apps are highly rated. Configuring the app was relatively painless, but it took a while to detect the device. Will continue to monitor this.
Otherwise, it’s pretty easy to use. I have all the default notifications on right now, so it’s buzzed when I’ve had a good “calm” streak, for example. I will likely want to turn most, if not all of those notifications off, but I’m going to leave them on for the time being.