Our crumb has always felt very comfortable and as the carrier has actually never the feeling of insecurity. Since the Marsupi is purely ergonomic surpassed only by a classic baby sling, we would decide again for this Wearing style.
In contrast to the really "bad" carrying system of eg Baby Björn so the Marsupi is a real added not quite favorable recommendation on my part.
Please also transport at the Marsupi your child NEVER lying face forward. This is ergonomic and orthopedic a disaster for the child, just ask a physical therapist !!!
When the application would be somewhat less complicated, there is definitely also 5 star with a crown! ;-)