We got this for our daughter as an infant. She had a couple swings and mats and toys but this was her favorite.....now she is 3 and she goes on every ride that she can and wants to go on the bigger ones she can't yet. I dont think the vibration did a whole lot for her but she loved the bouncing. She used it for well over a year. I think we only had to replace batteries once. As she got older I would bounce her harder and she would laugh as she came off the seat just a little bit. We just put it in the basement a few months ago because she found it and got on it on her knees and bounced it to the floor facing backwards (she didnt get hurt but not recommended) but it took the abuse so its good and strong and easy to put together.