Oh goody, how often will a thread come up about washing machines.
Here is my chance having spent years repairing the damn things as part of my work as a hospital tech.
We had all sorts of stuff from little table top things to enormous behemoths that sterilized and bleached as well weighing well over 3 tons apiece and ginormous tunnel washers 40 odd feet long.
Not one machine I ever came across had a system for holding doors closed using a vacuum.The misconception here is due to the fact that the rubber seal when compressed in place is designed to suck onto the mating surface but it is only atmospheric pressure doing it.
Every one of them had an electro-mechanical interlock to stop the door being opened to prevent flooding, but mainly a machine zipping round at around 1600 rpm will rip your arm off without even slightly slowing down.
Balancing a front loader is vital in high spin speed and large capacity machines, usually the drum is divided radially into 3 sections and the load is weighed and distributed accordingly.Trouble is, that even if each pocket has the same dry weight of articles inside it, differant fabrics hold differant amounts of water.
In some very expensive machines there is a small balancing pocket within each main pocket and as the machine wobbles water is injected into them to evenly distribute the weight.
A domestic machine that is capable of this in the UK will cost you around £1500-£2000 figure that into £/$ exchange rates.
Personal experience is that compared to top loaders ,front loaders are nothing like as reliable, the electronic modules are crap, the timers generally have a very sharply defined lifetimes and spares cost a fortune, the door seals are prone to leaking, the bearings are weak, the water level switches fail depressingly regularly, as do the drain valves and inlet valves but they do look nice in modern fitted kitchens!
Me ? I use a twin-tub cheap to buy run and easy to maintain .Yes you have to do a little manual shifting of washing from one section to anther but the work is done far faster.
Auto owners just switch them on and go out only to return home to a flood.