Just make sure hey have good control of their head before you use it . I bought it for my little dude around 5 months and he loved it, super sturdy. But his little head bobbled around for awhile till he had really good control of it! Then he started jumping around like crazy!
I got my son a Baby Einstein jumper. I couldn't find the one we have to tag but it was basically the same thing. He really enjoys it since it has a lot of toys and he's able to spin around in it. Fisher-Price Rainforest Jumperoo Baby Bouncer.