So I use this jumper Lindam. The big advantage is that the support belt (which is also the seat) is well padded for comfort and rises high on the torso so that baby stays straight. It therefore can not tip forward or backward or to the sides. Her arms are free movements.
The mechanism (spring, webbing, wire ...) is very solid and seems very safe (for an anxious mom like me it's great!).
Installing my baby a little every day in it and it is even I who have to get out because it will never get tired!
For now, it does not hopping but it spins on itself, makes little dance (like Riverdance), or lets himself swinging under the feet. In short, it explodes!
I recommend it without hesitation!
My opinion here: [...]