My 7-month old son just outgrew his Primo Viaggio not too long ago. When I was shopping for an infant seat for him I really, really wanted the Peg Perego because I had the stroller and, this is really bad, I thought they were the best looking seats on the market. But I read so many reviews of people hating the seat and saying that it was outgrown very early. I decided to buy it anyway because I planned on moving him to his Britax fairly early anyway and I don't think one should expect an infant seat to last over 4-5 months anyway. Well at birth my son was 9lbs. 6oz.!!! And he just outgrew the seat according to weight at 6 1/2 months(he has always been in the 90th and 95th percentile for weight and height), and that was way longer then I planned on using the seat. My son didn't hate the seat or seem too confined as many reviewers complain of. I know a lot of reviews I read also complained of babies sweating a lot in this seat. My son did sweat but I think that is very normal of babies, but he was also born in late December and maybe it would have been a problem if he was in it during the hot months. Sorry for rambling I just wanted to share a good opinion of the seat since I love mine! HTH!