Should be long yes, the suction power is really good and accordingly the vacuuming is fast

The capacity is sufficient for normal suction power. In 'Maximum' mode, the running time is easily halved.
But with the Dyson, the powerful brushes make the effect, so normal suction power is completely sufficient.

That's good enough. I have laminate and two carpets (3 rooms) plus bathroom, corridor, kitchen. However, I charge it every time because I have to vacuum intensively because of the dog hair. However, it has always been enough so far.