LOL!
Yes, it appears to be one step below a commercial grade washer/dryer. Capacity is like three top loads.
We keep the door of the washer open after a wash to let it dry out and wipe the seals down every so often. Same with the dryer.
So far, no smells, mold or mildew.
It really is a beauty!
Ours is 8 kg but with just three of us it is fine.
We have never really had a problem with smell (front loaders are noted for this) but like you we always leave open the door and the tray for washing powder.
For the old machine each quarter I ran a load with just cleaner and that seemed to keep the mold / smell at bay.
Have a great day.