The Bluebird is too steep in the back. To use this application, you have to inferior a rolled towel or something similar, it works quite well. Baby is now 11 months, and slim. Sits actually quite happy in it. Highly recommended would certainly a schooner for the strap between the legs. If the baby is sliding down, otherwise it hangs with all his weight on this belt. The seat belts in the Bluebird with the clasp at head height are not optimal for the BabySnuggler because every time must raise the Snuggles to close the belt can without the baby or the hair einzuzwicken.
There is otherwise no other solution for the transport of smaller babies have found I am so far satisfied with the BabySnuggler.
The price I think, however, for much too expensive, so point deduction.