My lo is 12.5 weeks and a hefty 13ish pounds. I swore up and down that i wouldnt buy a swing for her, but we went to a friend's house today and she had the fp snugabunny swing there. We put my lo in it and it was love at first sight. She napped like a champ while we enjoyed a nice long lunch. My question is, is it worth the investment at this point? How long did your lo's use this swing?