Interesting price / quality discussing

These bags are popular for their price (around 2 times cheaper than traditional bags Ortlieb or Vaude). They are well made, closure system ok, ok waterproof (tested under continuous rain for two full days) and straps for carrying on the shoulder very practical.
The fastening system is not very good (2 nuts at the top for hanging and cleat down to keep the bag against the overseer bike), the cleat bottom of one of my bags broke on day 1, bad luck? It was not compromising for onward travel but for a new product it's annoying, and it requires tinkering another solution.
I advise all the same product for tight budgets!