This is not quite true when initiating a turn. The large rudder input is required. For thermaling corrections such as less or more bank, often required in thermal flight, the required rudder input is less noticeable. Naturally the bank left to bank right times are higher that in a 15 m single seater. Extending the dive brakes results in a slight airspeed increase, unless corrective action is taken.
Side slips are also possible.
It offers attractive performance without increasing the pilot work load, since there are no flaps. And the possibility of varying the wing span it can be optimized for the various intended uses such as beginner training, aerobatics and cross country soaring.