I am looking for a recommendation on a Back-pack type carrier. We are due in November and do about one hike a month, along with trips to Farmers market and Street Fairs. I haven't done much research - as I'm not sure what to look for and what parents like best...it appears that Kelty has a good selection and good recommendations. Thoughts?

I have a sling - looking to get something for hikes - won't be using it right away - but doing research early. thanks.