It seems you have some trouble coming up with the cons. Here are some extra potential cons:



Inconsistency in key legends: The digit keys and the keys on the rest of the keyboard do not match. In the digits, the numerals are at the top and the shifted symbols are at the bottom. In the other keys such as [ ] ; ', they are the opposite.



Vertically stacked shifted key legends: The designer should know that the LED is at the top of the switch, and so you get uneven lighting within a key if the legends are vertically stacked. Contrast this with the horizontal layout in Code. In the video, you can clearly see how uneven this gets when a key is lit up. Try 6:33 and look at the [ key.



Using the LED to indicate lock status: The LEDs on the Capslock, PrintScreen, and ScrollLock are apparently used to indicate lock status (6:39 - 6:49). So in practice, the LED under Capslock is almost always turned off (so is the ScrollLock). In a dark room (such as at 6:49), this is very noticeable.



(Potentially a lack of the) Application key: There are two visible Windows key, but what about the Application (context menu) key? On some keyboards such as Code you can get the Application key back through the toggling of a DIP switch. Can the QFR-I do that?



Number of LED brightness levels: You mention 5. I think Code has 7. Super minor, still.



Overall, I like more reviews than no reviews. However, this review does sound a bit like an infomercial. Vendors can't grow if you don't give them honest feedback in your review.



P.S. I have no affiliation with Code or WASD. I am just an almost-happy owner of a Code Clear. You ask what we think about the keyboard. My answer: QFR-I is rather ugly.