This hardly happened to me, and the power strip has been few thousand kilometers traveling behind.
How many more? Maybe not as many. Because the plug dissolves, and the built-in parental controls (against plugging individual sharp objects) are always difficult to move because they were probably not designed for permanent plugging and unplugging, but rather for static use.
Important to know is still that the strength (the diameter) of the pins of the plug correspond Schuko, however, the plug without grounding, because after only a cable with two wires is off. This means that some travel plug adapters, which are designed for Euro plug are incompatible. Remedy can then create a Euro plug, which can then be mounted itself (or be properly installed by a licensed professional people with the appropriate authorization).
Given the price and the persönclihen benefit for me I see the product as a wear item at a reasonable cost. From "green vision" but would be my higher quality bar at a higher price rather.