The material is excellent, survives autoclave sterilization cycles. This is very convenient for pouring powders and viscous liquids.
The short, wide stem helps in easy cleaning. However, it would help if Ases introduced a slightly smaller powder funnel as well, with a slightly thinner stem. This would greatly help in filling viscous liquids like SLES or body lotions into 150-250mL bottles. (As of now - February 2025 - the 75mm autoclavable funnel has a very thin and long stem, so viscous liquids are liable to getting stuck without pouring).