At the end that case doesn't have a window so the only time I can look at it is when I'm cleaning the pc :) . I'm planning to change that case in the future (probably 200r) since due to video card there is only 1 available HDD slot (and I like to experiment with variuos linux distros outside Virtualbox) and the power supply is sucking a lot of hot air right now (which can't be good).
Well, it all depends on games you play - CS:GO on max settings runs in about 200 frames, while in GTA 5 (CPU-bound game) I'm getting about 60 using medium-high settings. After some tweaking, you can get 60 fps at any game, pretty much. You can overclock CPU to 4 Ghz - 4.5 Ghz (you'll need an aftermarket cooler for that). And video card is overclockabe, too!
Oh god... The cable management on that case is the worst thing... Even a cheap 2004 case has better management options than that crappy CM case...