If you don't have THICK rugs or carpet, then yes, it replaces your regular vacuum cleaner.
So far the Deebot seems to be doing a very good job REPLACING my regular Shark vacuum cleaner.
I have some THICK SHAG area rugs, so I will still need to use my SHARK vacuum cleaner. But other than that, hopefully I won't ever need to use the Shark for the rest of the house.
I did order two more DEEBOT N78.