I have stayed in a mid flr, currently low flr. Here's my observations:
- nice garden view if you are staying in an estate with nice landscape
- good excuse to exercise. Never have to wait for the life if you don't wish to YET u have the convenience of lift level
- ventilation depends on your surroundings. My #2 unit is quite okie. My MIL stayed on 9th flr but I do not think the ventilation is any better!
- noise level depends on your surroundings. My #2 unit is actually quite peaceful though it is located at the central of my estate. Only complaint is the occasional noise from the inconsiderate people below your block. It sounded as if they are at your door step
- more visitations from pests if you have the rubbish chute within your unit, so do remember to keep food away
- dimmer
- more affordable esp if you are sourcing for a good location vs a mid floor / high floor unit at inconvenient location!
- i have lesser fear that my maid may hurt anyone / neighbours' windows seriously whenever she dropped the bamboo stick to the ground!
Basically my conclusion is that no matter what floor are you staying, the pros and cons depends very much on the choice of unit. A low floor unit is not necessary worst off than high unit!