A hot water connection means that you can provide the machine with hot water from your main hot water supply. This can be faster than an internal heater and can save money if you have a cheap and efficient water heater.
Hoover OPH 716DF
Whirlpool AWE 8840
Dot matrix displays can show important text or graphics using a matrix of lights or mechanical indicators like the display on a calculator.
Top loading machines are good because you can load and unload without bending down. In general they have less problems with mold accumulating and on average a wash takes less time. In general they are cheaper to buy and are a good space saving option.
With a wider range of programs to choose from you can be more specific and choose the best, most economic program for your needs.
More weight capacity helps if you want to wash something heavy like curtains. A traditional household machine can hold around 6kg, so with a machine much bigger you may waste energy using it when only half full.
The machine will let you know when it is finished with an alarm or even by playing a tune.