Not particularly (it still depends on the type of equipment: a TIG welder is more difficult to use than a MAG / MIG), but at the beginning it may not be very easy. The trick for a good welding is to learn how to adjust the speed of the wire, so that a balance is created with the intensity of the current. In fact, the wire must advance at a higher speed than the melting speed: not too much, however (otherwise the metal risks not melting well).