I had a bubzilla for DD as a newborn but didn't like it that much, so for DS I went a Hug a bub and loved it. Very comfy, could wear it for ages, he slept really well in there, and DH liked to wear it too. As both of them got to around 4months old, I got a Catbird baby piccolo which I love too. Its a mei tei but with buckles. Very comfy, I can still wear DS on my front and he is coming up to 1year old. DH still wears DD in it on his back occasionally and she's a 15kg 2.5yr old.