I have already purchased 3 of these and so far it seems decent for its cost. How well it will withstand external conditions compared to regular hoses will be seen in the future. The spray gun is also of decent quality, it generally doesn't leak and on its own costs half as much as the hose+gun package. However, I would like to note the following:

1) Don't be deceived by the size of 15 meters. In reality, it is more realistic to calculate it with half the dimensions. On a terrace that is 8-9 meters wide, the hose stretches quite a bit to reach from one end to the other, to the point where you start to worry about the tension developing in the quick connectors and the faucet itself. Then I cut it in half and put it on a balcony that is 3.5 meters wide, where I found that the 7.5 meters of hose still stretched too much and required force to reach from end to end. Therefore, wherever you want to place it, first divide by two to be sure. Don't expect to stretch it so much that you have a 1-to-1 ratio like non-spiral hoses, so the "15 meters" is slightly misleading. It would be more accurate to say something like "15 meters that practically correspond to 7-8 meters of a regular hose, it just coils more easily due to the spiral design."

2) If you happen to cut the hose into smaller sections, know that you will need 5/16" (or 8 millimeters) quick connectors to connect it at both ends. It may be advertised as 1/2" or 3/4" in the packaging, but that only applies to the connection with the faucet. The hose itself is narrower and cannot fit into such a connector. It requires 5/16" connectors.