Less than 1000km, street use. See marks that for me indicated soft material.
No racing decelerations that make life for internal chains and tensioners very hard.
I noticed when I had other reasons to tear down head and cylinder.
Stock Honda tensioner was the better alternative for me.
Edit:
I found the tensioner and took some more photos. My tensioner has minor marks. It had only done max 300 km so that worried me. Engine apart due to other issues and I noticed the upper wheel marks.
If >50.000 km probably no problems. The teeth has deformed a little like they are soft. Small ridges pressed out on the teeth.
More visible on one side. The upper wheel spin very easy.
Lower wheel has small marks on the sides of the center ridge.
I saw the tensioner to not last as long as stock tensioner. My bike is a street bike, few heavy decelerations. Only during break in of the pistons vs fresh hone.