I'm using the TT CTE E600MX, and it has been a solid case so far. The cooling performance is the main highlight the rotated layout moves hot air up and out quickly, and the GPU stays cooler than in a traditional layout. The triple GPU-mount options are also nice if you want a clean showcase build.
Cable management takes a bit more time because of the two-chamber design, but once everything is routed, it looks clean. The case is large, so make sure you have the space for it. Overall, if you're building a high-end system with strong airflow needs, it's a good choice.