Received WatchPAT One for my husband. That evening tried calling the 24/7 line for needed support. No one answers and it forces you to leave a message that your call with be returned on the next business day by the end of the day. Unbelievable!! Tried again, same thing happened because no one answers! Used my phone and got the app downloaded. Seemed to follow instructions, yet in the morning, the step guide said to "End Recording" which wasn't there. It stated it was transmitting data, yet that message was still there an hour later. Again, could not get through on phone and called any # for company...told data was not there. Finally got thru to 1-888 number, and told it needed to be pushed thru, that study completed after 7 hours - that is NOT what instructions say. Disgusted with the lack of support. You have no problem reaching out and collecting payment before device is mailed out, but lack the support needed once received. I rate you a zero, as this is unacceptable service