Launderess is very right, but most commercial machines are designed for installation on concrete floors. I cannot honestly say how these machines perform on a wooden floor, but I would imagine that, once again, it depends on the joists under the floor and a corner location is far better for coping with vibration than out in the middle of a wall. I do not know that it is any worse than any other large drum front loader, but maybe some manufacturers have developed more sophisticated software to better handle vibration. A few times mine has actually aborted one of the intermediate spins because the load was too unbalanced. It stopped and then started tumbling to try to redistribute the load. A couple of times it went into the distribution when I was near it and I saw that the load was too unbalanced to ever get it to go into the 1000rpm spin so I turned the program selector to OFF, let it stop and then started the final spin once again, BUT unlike the Duet, which I will admit was much older technology and a much more fragile machine, the SQ will give it a GO and try to do the best possible job unless it just can't in which case, it stops to rebalance. I mainly use mine for those large bath sheets and for throw rugs, both of which can be hard to balance. I have special ways of loading the bath sheets to minimize tangling and balling up which adversely affect the balancing so I rarely have an unbalanced situation.
When the original no-suspension bolt down Bendix washers were installed on wooden floors, holes were drilled through the floor joists and the long mounting bolts that went through the machine base and through the floor joists were then anchored to a steel plate under the joists. If anyone has a vibration problem with a wooden floor, bolting reinforcements under the joists to tie them together or even putting braces between the joists could help. A friend put one of those adjustable support columns under the joists where his Kenmore combo sat to strady the floor.
I still don't think you will find any front loader at this price, nor anything as rugged for at least 5 or 6 times the price which is what it would take to buy a new Speed Queen. Once you try a front loader, you will hardly ever want to fill a top loader with 16 or more gallons of hot water and use double the laundry product when you can wash almost everything just as well in a front loader. Canvas drop cloths still wash better in a top loader because a 12 X 12 foot drop cloth balls up in a front loader.
As for the hot water situation, if nothing else, you can start the machine on a hot fill, which in an empty machine only takes 3 gallons of water, let it tumble a few minutes to heat up the drum, then drain it, quickly load it and restart it.