4Moms Rockaroo or Mamaroo worth it?

Amy
Has anyone used the Rockaroo and found that it was worth the money for their baby. My LO is 9 weeks old so I'm wondering is it even worth it at this stage as most say it helped with newborn/colicky babies which she is neither. She does however stir when I try to put her down or if she's fussy I rock her back and forth which works. She went in my friend's Mamaroo yesterday and absolutely loved it but no way I'm spending the extra money the Rockaroo is cheaper. Would love to be able to put her in it and get on with some housework/make dinner and she be occupied. She has a bouncer and activity gym but I have to sit with her after 5/10 minutes and play which obviously I don't mind but sometimes I need to get on with stuff not just when she eventually naps!