When DD was 7 months, we brought our "buggey bag" (same concept). We never brought it into the parks, but used it for evening dinners (just threw it in the stroller basket if we were going to be walking around.) Since she had just turned 7 months and was just getting used to the resturant style high chairs (no support), it was very useful (pillow, extra support, etc). This trip she will be 14months and I don't think we will bring it - but if I ever went again with a young baby, I would bring it in a heartbeat.