Instruct: Classify an Amazon review as either positive or negative.
Query: Best Toy Ever

My four month old adores her jumparoo. When we are holding her, if we sing the song that plays from the jumparoo, she smiles broadly and starts to jump in our arms. She has good head control, which is essential--but the seat is deep, which keeps her secure sit she cannot sit up on her own yet. The lowest setting is still a bit high for her, even though she is 97th percentile in length at four months (26.5 inches). We put a lap-desk (flat on top, cushy pillow side underneath) wrapped in a towel for traction under her feet and placed phone books on either side of the lap-desk to keep it from moving. Phone books alone were unstable and not wide enough for her to dance around on. She gives this thing an incredible work out daily and it shows no signs of falling apart. The jumparoo is the best purchase we have made, along with the Nosefrida (nasal aspirator). Silly, but both make her really happy. :)