Conclusion: R-4 BullDozer is definitely one of the innovative products from GMC which not only looks pretty cool but work very well as well especially the air flow design. Besides that GMC R-4 BullDozer also comes with two temperatures sensors plus the temperature readers which allows users to monitor their hardware temperature easily without going through the window software.
Summary: Looks: great and it was on sale but I was rather disapointed by the feel and the lack of bays. The inside is rather bare. Once you open it it seems like it's only an empty enclosure. I bought it for my 10 yrs old son. I have not put it together yet due to a serious lack of time but eventually will. I can't help it but the feeling is that I have paid too much for what I got.