Full mesh in front and 2 giant fans at a reasonable price point makes it the only mid tower ATX case worth considering. I've had my old case for 13 years - it's also a Cooler Master with full mesh in front, and still functions great, but I no longer need any front-facing drive bays. This new design sports even better airflow and I have no doubt will last me just as long.
Comes with a good deal of mounting hardware -- motherboard standoffs and screws, and a nice little tool to help put the standoffs in with a regular screwdriver. Cable management is super easy with this box, just get your power supply in first and put the shroud on so you don't forget later and have to reroute cables around the shroud -- particularly those front panel and front USB connections.
instructions for hooking up the RGB are non-existent. The important thing to know is: the arrow on the RGB cable connects to +12v on the motherboard header. I also had to "calibrate" the lights in ASUS Aura. It does come with a little button you can use to control the lights instead, but I didn't mess with that.