I love this device. It is the simplest, most beautiful and elegant design of all the Shift devices I have seen. It is also the quietest and has the most lovely chain of them all.
I've really loved using it. It has taught me what a truly relaxed and full breath is. And has made me more mindful throughout the day. I particularly like using it after I've been on the computer for a while because that work always tends to make my breathing shallow and tense. Something I never noticed before using the Beam regularly.