Maybe it would be great…
The second day of use and no matter how many times I try Cove will not connect to the app.  It is showing connected in my Bluetooth connections, but it can’t be used without the app recognizing it, and that seems to be impossible.  Very frustrating.<br /><br />Update:  I reinstalled the app and it helped some.  The device seems to be working fine but the app is buggy and often doesn’t respond or gets stuck on a screen.  The device itself is somewhat comfortable to wear and I have yet to notice any differences in how I feel, but spending 40 minutes a day with a little thing vibrating on my head that I feel hope will help with my sleep and anxiety isn’t a bad thing.<br /><br />Update: you can use Cove without the app!  Their customer service is amazing and I feel so much better knowing that the device, which so far works perfectly well, doesn’t rely on the app.  If I notice positive changes with use I will update this review further.
Rating: 4 stars