Swapped this onto my tank and the airflow opened up way more than I expected, that 8.9mm bore really makes a difference. It's only 10.25mm tall so it doesn't make the setup feel top-heavy either.
Michael★★★★☆
The stainless steel base feels solid and doesn't get hot like my old resin tip did. Only gripe is the 16mm width is chunkier than I pictured, but the 8.9mm bore gives great airflow once you get used to it.
Benjamin★★★★☆
The 8.9mm bore is noticeably wider than the stock tip on my tank, and airflow opened up a lot. The stainless base sits snug with no wobble, though it does collect a bit of condensation on the outside after a long session.