The idea behind the cover is to cover up your cdroms and such. The idea is to keep it closed, not open the cover and leave it down all day. Mine is loud but thats because of the PSU's fan. I got a nice fong kai power supply so its worth it. Yes it is a pain to open the cover, open cdrom, put cd in, close cdrom, close cover. If you are worried about airflow, just install some blowholes/suckholes on the side and/or top. Thats what I'm doing this weekend on the hydraulic case.