My 18 month old granddaughter loves crawling through the tunnel and playing in the ball pit. I didn't spend hundreds on extra balls. I only bought 1 pack of 175 and that's enough for her to enjoy the ball pit. It is beautiful, practical, easy to install and disassemble. Squeezing all 3 pieces back into the zipped bag is a little tricky, but it takes a bit of practice. I'm glad I bought it.