This was my first shot at a mini ITX build. I'm going to be ordering a set of cable mods for the build but for the time being it is adequate. The SG13B case is a good case to build this lil guy in. It has enough space for a full size card which is a big pro for me as I reused a RX 580 4GB OC card from MSI out of a prebuilt I had (that's why the price is 0.00) I'm going to be ordering a RX 580 8GB for my main PC as I use it for VR and the other 4GB will help with that. Aside from getting a few of the front pannel connectors in and getting the GPU 8 pin plugged in the build was surprisingly easy to assemble, way better than I was expecting. Note on the GPU: my GPU barely fit, the 8 pin connector is literally touching the frame on the front of the case, it was a pain to plug it in. According to the Silverstone website this card is too long for the case, but it did fit with some creative adjustments during the install. Just keep this in mind when you go to buy a card for this case there are builds on here that have cards that the manufacturer says wont fit but they do, You may find a card that has the power connector just 1mm farther out then mine and then it wont fit. AND FOR THE LOVE OF ALL THAT IS HOLY DON'T CUT YOUR CARD TO FIT! I say that cause I found a video on YouTube of someone doing just that, he actually cut his heat pipes......needless to say he had thermal issues. So on the temps I am seeing a max of 52c on the CPU while running time spy and the GPU topped out at 77c on time spy. I went in and put a 2% OC on the GPU and turned up the fan curve pretty aggressively and was able to keep the temps under 62c. This card ran pretty hot 75c-ish in the Coolermaster H500 case I pulled it out of that had great ventilation so I would have to say that the case is not really affecting the GPU temps too bad. I went with a low level CPU as I wanted to keep the thermals down, and surprisingly this CPU performs pretty admirably. Before I even got the GPU in I ran a few games just on the integrated graphics and I was able to run Portal and Cities Skylines decent albeit a lil potato. I decided to water cool it because with an air cooler in this case your really limiting your options and performance. With the setup I have I can upgrade the CPU later and have plenty of headroom left over on the cooling side of things. Also I have the cooler fans in a push-pull configuration setup to exhaust the air out of the front rather than pulling the air in. I'm using negative airflow on the case because there is plenty of ventilation around the case and I didn't want to pull the air off of the cooler into the case.
EDIT Added Pictures by request of the front cover shot with the cover installed and removed. I also added pictures of the graphics card connector to show just how close it was. In hind sight the case could probably be dremmel'ed out just a bit to get better clearance.