Hello everyone! Mommies, who used the growing stool and assistant's to…

Hello everyone! Mommies, who used the growing stool and assistant's tower? Give honest reviews on how useful and justified these purchases are? What actually came in handy, and what didn't? Maybe there is some alternative... Son doesn't want to sit in a child's chair, I put a pillow on our adult chair and he sits calmly and eats like that.