Hello,
yes, in any case I also have the steam device, but the Dreame gets even more out of the grout, its enormous suction power is extremely cool even for dry cleaning and carpets.
It gets right to the edges and dries extremely quickly after cleaning. So I am very satisfied.

We also have a steam appliance. We find the Dreame great for daily cleaning, vacuuming and damp pick up in one. We hardly need the normal hoover any more. And then in between times with the steam cleaner to kill bacteria etc..

Can I get under the sofa with the dreame?

For sure you need a cordless one.

Yes, because your steam cleaner does not suck.