As soon as I ordered the kit I figured I'd need to add additional standoffs to prevent flexing in the middle of the PCB. My plan is to measure the existing standoffs in the case, purchase additional loose standoffs (like you'd use on a sandwich style case), screw them to the bottom of the PCB in all unused holes (there's several), apply a dab of JB weld to the bottom of each, then assemble the case. At least, that's the initial plan, subject to change when I have it in hand. I may opt for strong double sided tape at first and see if it rattles.
If you go through with with this, would you mind providing photos?
I just finished my build, everything went pretty well.
Definitely get where people are coming form on the flexing, it's not super bad for me now that everything is assembled but I can see where folks with heavier switches might have issues especially in the northeast part of the keyboard.
One of my LED's was missing a resistor so I jerry-rigged one from a different board, one day maybe i'll replace it with the proper one.
I also can't get one of the underglow RGB led's to work, so I figure it's either defective or I'm missing another resistor (I noticed another one)
all in all though, I'm pretty content given the price- I think the "issues" can be more or less rectified and you're left with an arguably "high end" board for ~$100.
I also plan to add some little rubber adhesive feet to the front as well since it's bare.