I am using Aprica, but my brother is using Combi. I think both are very good. Aprica is more expensive, but it is worth. Combi is more reasonable. Both can be used from 0 month to 4 years old.
So far, I like mine and my brother likes his!
I like Combi's highchair very much, the one I am using the cushion is very soft and confortable, and it can be folded to save spaces, i love the design!