I detest them. I have a newer model (not sure which one). Its interesting but it pushes dust around when it’s full and the suction isn’t powerful enough for corners. It’s a very shallow clean. The battery life is poor and it’s terrible on carpets/area rugs. The mopping function isn’t really good for cleaning, either. The only good thing I can think to say is it works well on the tile in the bathroom when the door is closed. It is also decent for touch ups in-between deep cleanings.
I use it after I swiffer before I vacuum with a traditional unit (a bissell designed for hair and pets). I have 3 dogs and absolutely cannot stand the idea of my house smelling like outside or dogs. It 1000% would if I only used Oswald.