Here is my review over on optics Talk Forum. As I posted earlier, your impressions matched mine.
I've compared one Minox owned by a mate with other (unmounted) scopes one evening on dusk. It was a 3-9x40/42 (?). He took it to Namibia and the grub screws came loose on the windage turret. When tightened up, it performed flawlessly on his .300WSM. He still has it.
All scopes we compared were set on 6x. We also had:
I would rate the Minox last out of those, but then the competition was higher end and the conquest had not been to Namibia. Compared to the others the Minox lacked some definition around the edges. It was certainly ahead of a Leupold.
For the price it did impress me though and I thought it outstanding value. I will be buying a Minox next. I believe the difference on the short research I've done on the web, is in the coatings. As noted, the lenses are Schott glass.
I should say that we consumed 2-3 stubbies of lager during the test and this may have affected the outcome.