There is practically no friction for the trains to run on. This means that the most annoying problems, maintenance of deteriorating tracks and excessive vibration, are gone. They can also withstand heavy rains, snow, and steep heights. They are extremely adaptable to any kind of environment, and do not disturb the environments around them in any way. They also produce much less pollution than normal trains.
Maglev trains run on lower noise and energy levels.
Here is an explaination of the magnetic forces which repel on each other. By nature, the circulating electrons go out of their way to move in the opposite direction. The object's electrons push away from the bottom magnetic field, and if there are enough of them, the opposite force of these electrons upon the guideway magnet is strong enough to hold the object up. These powerful rare-earth magnets are placed in a special pattern under the train to create a magnetic field as they pass over the inductive coils wrapped around the track. Obviously, horizontal forces acting upon the train are very unstable and constantly need to be readjusted.