Antibacterial protection: The nano-silver or silver-based component helps reduce microbial growth, which is a plus where water quality is questionable.
Continuous direct flow: You don't need to store water and wait; as you open the tap, purified water flows (so long as water supply & the purifier’s filters are in good condition).
Higher flow, wall mounting: Good if you want space-efficient installation and quicker water delivery.
Multiple filtration stages: Six stages usually implies better removal of sediments, odor, possibly some chemicals, depending on the quality of filters and design.