Received my case today, and I spent a few hours transferring my components from my FTZ-01 to the Salvo 400. I had to leave my Big Shuriken behind, and replaced it with a C7 with a 120mm fan adapter; I am running a XT140 on the adapter. For my GPU, I have a Zotac 1080 mini, and it sure is a tight fit.
For the bottom screw, I replaced the provided one with a shorter screw to avoid hitting the pcb of the 1080.
I installed the PCIe extender first, attached it to the GPU, and put the GPU in place before screwing the extender onto the chassis.
Great build quality, packaged very well. Can't say I have anything I dislike about this case. Cabling with stock cables is a pain in the ass, but I believe that goes for most SFF cases anyways. The provided grip stickers for the feet do a great job gripping onto my glass table.
All in all, this is definitely a case I would recommend for someone who is willing to settle for a CPU fan under 50mm.