Owlet Smart Sock Baby Monitor

Do any of you ladies have an Owlet Baby Monitor or are considering an owlet for your little ones? For those of you who do not know what an owlet is, it's a sock that measures your baby's heart rate and oxygen levels while they are asleep. The information can be viewed from your phone via the app. I had never heard of this product until my husband's co-worker mentioned it and I began researching it. I was expecting it to cost a lot of money, but we purchased ours for only $300, maybe a little more, but it's inexpensive. I feel like it will give me a peace of mind because I am a "worrier" lol. Any moms with experience with this product? How did you like it? Does it give you a peace of mind?