Very poor quality !
I bought this hose last year.
Now, for the first time, I had a hole in that hose. No problem, I have a good patch kit to patch the hole.
But to my astonishment, I found that there is a hole on the side(!) of the tube (through which the tire loses air), but on both sides(!) around the tire there are lots of small imminent holes/cracks ( not yet through ) at a distance of about 2cm. As said, on the side surfaces, not on the inner surface that rests on the rim, nor on the outer surface that comes into contact with the road. To date, I have never seen anything like this on a bicycle tube in my cycling life (50 years).
You can imagine that it wouldn't have taken long after I closed the hole for one after the other to come in. The hole was not caused by external influences but by the cracks in the hose, which indicate poor quality.
This is not in the spirit of the inventor, if you buy a tube and then ( after half a year ) have to dispose of it after a hole, since you can no longer mend it because there are tears and other potential holes.