My favourite scent is usually none. Fresh coffee is good! An apple pie of course! A vanilla candle perhaps. But a scent machine for your home. Humm! If it’s for personal use perhaps, or rather I should say go ahead. However, when it comes time to selling your home I would pack this little fellow away. The scent of pets, or cat litter can be off-putting but the scent of a scented candle or a scent machine immediately raises a flag “What are they trying to cover up”.