I did notice when I put my sound card in it was a little high at first, but installing the graphics card seemed to sort the problem out. Also a little push down on the cards and screwing them inplace leveled everything off well, it's no worse then any other budget case to be honest, I didn't have to use washers or anything all fits perfectly. Only problem I had with the case was the front fan module that holds the 2 * 140mm fans was broken but they replaced that now (took 10 days total from reporting the problem to Fractal Design to getting the replacement, it came direct from Sweden). I would give the case my recommendation if you are after a well priced large case with good cooling once you add more fans and fans that push atleast 60 CFM. I replaced all the 140mm fans with BeQuiet SilentWing USC and added also the 120mm BeQuiet SilentWing USC fan, I left the 180mm fan in place due to BeQuiet not making a 180mm fan, but when they do I will probably replace that too, but the stock 180mm fan seems quiet and throws out a good amount of air. So now the case has :-
1 x 180mm stock fan.
4 x BeQuiet SilentWing USC 140mm Fans
1 x BeQuiet SilentWing USC 120mm Fan
It runs quiet and very cool for a air cooled case, just need to replace my Zalman 9700NT CPU Cooler at some point as it seems to make the most noise in the system.