Security = really good 4 stars
Function / operation = easy 5 stars
Quality / processing = 2 stars because: the screws with Dm = 6.2 x 52 mm not fit into the holes of the lock, DM 5.9 mm, as one should urgently do something on the dimensional accuracy of the components. Furthermore, I recommend that the manufacturer on the use of stainless steel screws with a multi-tooth recording (eg Torx) instead of the cheap hardened steel screws with Phillips.
Assembly = 3 stars if the above shortcomings were not there 5 stars
Price = no points because each has a different limit ;-) !!!
Conclusion: Genial but unfortunately with drawbacks in terms of quality / processing