We need smart vacuum robots which can (at least optionally) be fully functional without connectong to the Internet.
I own both types and I found the cloud version to be less reliable and less convenient.
I'll tell you.
None. None more cleaner.
The fact that it needs an internet connection for that is maddening.
Unfortunately, I would never consider connecting the app for fear of what info it might be phoning home with (even if it's just my vacuuming habits). It's too bad that "connected" is basically synonymous with stealing personal information. There are lots of cool non-spying things internet connected stuff can do, but companies have ruined it by using them mainly for bad.