My son enjoyed his time in this. He'd even put himself to sleep at times from all the bouncing. He was able to use it until almost 6 months. Once his legs started to stick out I had to remove the vibrate/music player because he would keep slamming his heels on it.

We were able to use this swing until my baby was almost 6 months old, on crabby days it was the only thing that got him to sleep. I couldnt live without it for a second baby!