I’m a mom of 3, my youngest being 4 months old. I set it up the other day when my husband was at work. It took about 20 minutes once it was out of the box. I tried using the instructions but followed my husband’s lead and eventually threw them aside. My daughter is 25 inches and she can almost touch the floor already. Another 2 inches and she’ll be able to bounce in this. My only complaint is that the music only lasts for 2 minutes or so before it shuts off. That won’t be a problem once she starts interacting with the toys more, but right now it’s inconvenient.
Update 3/14/19: She can reach the floor now. She loves this thing. We can keep her in it for up to 20 minutes. She’d stay in it longer if we let her. She likes rolling around on her playmat on the floor, but she loves this more. We now call her “a jumping junkie”.