I am a high anxiety mom. This gives me some peace of mind! I still check on my baby regularly (okay a lot), but this allows me to get some sleep knowing that he is being monitored!We bought this and the Nannit to try. I like the owlet better than Nannit because the sock can be used throughout the house whereas with the Nannit baby needs to be under the camera for it to work. You do not need to have the owlet camera for the sock to work, though I do recommend it!I also like that this tells baby’s heart rate, blood oxygen levels, and quality of sleep (light, deep, awake). The Nannit only counts baby’s breaths per min.It’s fairly easy to use and get set up! Sometimes it disconnects from our WiFi, but not often and that is probably more an issue with our WiFi. I would love for it to have a back up mode though if wifi goes out! The sock is soft and easy to put on. Multiple sizes come with it, look on the inside of the sock for sizing and left/right foot. I will say though that when we initially tried it our baby was 5.5 pounds, and it did not fit well. It alerted us that it was having trouble getting readings. After our baby put on a little weight it worked great!