Could not connect anything

I wanted to buy me a perforelieuse after having tested a very good quality in someone. For the price, so I let myself tempted by the GBC, but this machine is really bad.
- There is no reference to place the leaves in the right place drills
- If the leaves are a little horny or bent, damn it, you can not place them in the perforator
And even when they are nickel, it fits 2 once, and most of the time the holes are not in the right place
- The machine is literally filled with grease, it makes a mess

In short, after xxx attempts, I still nothing connected, and I ruined my file.
I do not recommend.