The scalability is very good.
By cons, as any evolutionary chair it takes up space on the ground, but it is also what ensures good stability (and no complaints on that either)
I chose this model to tripp trap so fashionable, and I do not regret, shapes are softer and it's still an evolving chair based on the same principle as the others. And it also seems to me that the beefier Stokke.
The only downside is the lack of harness in the seat. As with other scalable chairs ...