Sound blocks and realistic sound
While realistic sound is a must-have as far as I'm concerned, it does have some issues.
In addition to other issues reported, I have found that sound blocks do not respect helmet state nor pressurization in terms of audio being muffled when appropriate. It does, however, stop when contact with the grid housing the sound block is lost. On the other hand, if one was floating in a vacuum with a sound block already playing and the room was pressurized, the sound would not be played to the player. The same goes if the player comes in contact with a grid in a vacuum that has a sound playing.