Bumbo Baby Sitter - great investment. Does require supervision!
No assembly required. Easy to clean! It is excellent for young 3 mo. - 4 year olds! My children use it to watch TV. I use it to help feed baby. It helps if you have a high chair and baby wobbles around. Very simple product, but for me it has been a life saver! Great investment!
Unless you are on the floor you can't leave the child alone in it. No seat belt or restraint. For that reason I give it a 5.