I apologise if this should be in products firstly!
Ok so I have spent far too much time researching both of these highchairs.
They both do roughly the same thing....it's just the cost.
My lovely dad will happily pay for either so it's not about the money although I don't want him paying for something just because IYKWIM.
My DS1 used his (nightmare to clean) Chico chair until he was 3.5. He is easily distracted so having him in a highchair kept his attention on eating.
This is the only thing really putting me off the Ikea one, it looks small so they would outgrow it quickly?