Are Rock n Plays really holy grail?

Megan • 3/17/05 ❤️ 9/26/15 👰 12/9/16 🍼 3/06/19 🍼🍼

I want somewhere for my twins to lay and hang out when they are small. Are rock and plays as great as they seem or more geared towards sleep?

If not rock n play what did you use for your newborn twins as I will also have a two year old to chase after!