Hi alicia,
We have a jolly jumper and ty loves it- by far his favorite actvity!! I don't leave him in it for longer than about 20 minutes and I think maybe they are safer hanging from the ceiling than in a doorframe?? It's great for those times when I need a few minutes to hang out the washing or do a quick vacumn. What's Gymbaroo like? Think we might be looking for an activity to nreplace swimming lessons- not sure that they made him sick but pretty confident they didn't help!