I'm not a serious cyclist, but we ride all over on weekends and my husband commutes with my daughter both days. The ibert was a great seat for about 1-2.5 years (for a big kid). She's now 35+ lbs and tall, and so we had to switch her to a rear mounted seat (actually got a cargo bike to accommodate second kid and groceries). I know some love trailers, but we like the convenience and security of just having one piece.
Re: Biking with Baby