I just had a read of an interesting report by DCC on Apartment Living - they served nearly 200 schemes across the Dublin area and looked at a number of items regarding management of the schemes.
The 2 areas that interested me were the fire standards of apartment schemes and noise complaints. Fire standards for apartments are extremely low with poor signage and equipment. Noise is a large percentage of complaint to management companies but only 6 (yes 6!!) complaints were made to DCC in relation to apartment complex noise.
The full report (which includes the checklist they used) is available here:
The checklist might be useful for folk renting/buying apartments so do check it out - page 116.