Excellent space, the fans at the front are pretty powerful, sucking in huge amount of cold air. The 140mm at the back as an exhaust fan rips the heat out generated by CPU and GPU.Set up was easy, the brackets are installed for ATX already, so a simple swap took about 30 mins. The cable management is fantastic. My cables are messy as new ones are on the way, but currently there are brackets at the back, Velcro straps and sections for attaching ring ties.The PSU has plenty of room to breathe. The dust filters are fantastic and have no restriction on air flow.With x3 Fan GPU and AIO 380mm cooler, this case remains cool inside. The only hot spot is by the GPU which I can feel in one strip on the tempered glass. That's not the fault of the case, my GPU is quite demanding and OC so it can be mounted vertically if you desire.There is space to install your AIO rad at the front instead and use it to pull cold air through to cool the CPU and mount the 3 120mm fans to pull cold air in the top. The exhaust fan is more than adequate to handle this.My OC 5gHz CPU runs at about 75-80c when melting on Ultra spec games (rust in ultra), GPU at about 75 also. This can be brought down by swapping the fans, but my GPU will increase slightly.I won't be swapping my case for years now. Asus have built a beautiful case with solid air flow, it deserves its slightly more premium price point.