The AP is a good idea and cools well, but SS needed to include a way to attach a 120.1 rad simply and easily. I mean yes, you can lose it and attach a 120mm fan instead but doesn't that just ruin the point of the case?
Then you have the PSU. Again, a good idea to bundle a strong PSU with the case, but it's not modular (seriously, what were Silverstone thinking with that? Surely it's the FIRST requirement for a PSU in a SFF case?) and the cables with it are just stupidly long for what they are.
Also, when I did have one, I found the build quality to be questionable, and the GPU cooling performance to be very poor. If you're going to have a case to put on the desk just a few inches from you, you can't be doing with a GPU that has to ramp up to vortex level to keep itself cool.
To be honest, a total missed opportunity from Silverstone. I felt the SG05 and 06 were just better cases, despite the lack of room for a meaty GPU (although you can squeeze a GTX570 in there, certainly no slouch of a card that). You get an extra 4L in volume for what is, overall, a worse case.