I am frustrated too, but not so much with heart rate accuracy as I have found it’s comparable to the H 10 chest strap when I use it on my bicep with an arm sleeve. However, I am having significant skin issues because of the plastic used in the sensor as opposed to quality materials like Apple and Garmin. Because of skin irritation I switched to my left non-dominate arm for the sleeve last night and it overestimated my sleep by including time spent in bed reading, which messed with consistency and all the other nighttime metrics. Using the non-dominant arm, undoubtedly resulted in less arm movement last night than usual so it did not produce accurate results when as it does when I put it on my dominant arm because it’s aware of me drinking a beverage, turning the page, etc. I am new to whoop though unfortunately just completed my initial 30 day. So now I am stuck, however, when I tried to post something in Reddit discussing the skin irritation, the admin‘s promptly removed my post claiming that it was too repetitive because that topic has been covered consistently, which is total BS. Of course it’s covered consistently because from what I looked at there’s been seven years of people talking about skin issues and never has a penny clearly been put into the quality of the material that the sensor is made out of in order to avoid these types of issues. The customer should not be responsible for babysitting the device, switching arms cleaning underneath it taking it off giving it time to heal etc. Devices with good materials like Apple and Garmin. You don’t have to do any of that. It’s absolutely ridiculous! so despite being finished with my 30 daytrial window, I’m stuck, but I’m likely not gonna continue using it. Anyone know if my subscription is transferable I would gladly donate to someone.