i have the infnat insert and it depends where you are using. i used it first time during vacation few days back in istanbul. it used to get hot after some time but its so snuggly and ds loved to be in it. i use it here too if i am outside just not at home because there i can hold his neck ( he holds himself up by now). its seat is really comfy and he sits in it quite nicely. (i do have a large baby)
Does anyone have the Ergobaby carrier with the insert? I have been concerned about using it because i am worried that my baby will get too hot. It seems very snuggly and I keep thinking she will overheat!