It's been about 8 years since I've built in a mid tower case (have stuck to SFF / ITX builds for years now) but the 4000D airflow is a great case and the build was really straightforward. It's a lot nicer not scratching and cutting your hands trying to squeeze cables and fans into small spaces in a sub 10 litre build - and instead having plenty of space to route cables! Reused almost all of my parts from my Ncase build, just had to grab an ATX motherboard and PSU, some extra fans for intake and then some sleeved extensions to have it all looking neat and tidy.