I did receive the unit before the new year.
I have only tried it out a few times so far. The heart rate sensor on my shirt is not picking up much a signal. The breathing sensor is ok. There are 3 in total.
I'm hoping I'm able to re position the sensor into the correct spot as it could have slip out of place when they were sewing it together. It is channeled inside of the shirt.
I think a shirt is the way to go instead of a harness. I'm wearing a Lumoback back posture sensor right now. It always rises up or out of the position it should be in.
I'm not a very good reviewer of products so you guys are better off waiting to hear from others.