My twins started using this at 5mo and at 7mo still love it. I can see them using this for many more months considering they rediscover the various toys every few days and haven’t even figured out how to rotate by themselves very well yet. Also we’re still on the shortest setting height wise! The only reason I gave it four stars is that it was missing the attachment piece for one of the toys (the frog teether) but otherwise very happy and this thing is amazing! A few tips: if baby is just a little too short, put a cushion or blanket underneath their feet so they can bounce! Also- the musical part snaps in and out fairly easily so we’ve used it to entertain/distract during tummy time or meals.