Baby stuff opinions

Paige • 18 years old. First time mommy! 💙11-11-16💙
If any of you ladies have used a by your side sleeper, how well did they work? What were your opinions on them? Did the baby seem comfortable? I plan on getting one for my baby when it gets here because I'd want to be close to the baby due to some paranoia issues but also because I'd love to be close to the baby while we sleep.