Excellent value for money. The Karcher version may be a bit better/more solid, but it will cost more than double. The supplied adapter fitted well with no leakage.
For my purpose of unclogging a 75mm pipe from the kitchen and garage, this hose did it -eventually- well. However, that was mainly due to my approach and the persistent blockage. The 75mm tube was closed with granular grease/sludge over a (straight) length of 12 meters. Only at the bottom was a mouse hole open that quickly became clogged again by loose chunks,
Another point is that I started on the 'high' side (because there was an opening there for the hose to enter) and a sewer hose should eat the other way around, upstream, upwards through the gunk. The loose stuff is then immediately flushed down, but I didn't have an opening/inspection cover there yet, while I wanted to have the blockage cleared the same weekend day,
Therefore I had to get the hose through 12m of clogged pipe and the last piece the hose was not stiff enough for even though the pipe was straight. The solution was to put the head with a tie wrap on an unclogging spring and now rag them through the muck together. That eventually worked and then the pressure was on. Slowly moving back and forth I was able to spray most of the stuff loose, although I didn't see that happen. Things are going pretty well now, but I still have to make a hatch near the transition to the 110mm tube so that I can spray away all the residue and clean it preventively for the next time.
I would have preferred a slightly stiffer hose because of my approach, but someone else will like the smoothness because it makes it easier to get through bends. Especially with thinner tubes.