Yes brother if you feel your car is not performing well e.g, poor fuel economy, missing or rough engine running or high carbon deposits in exhaust tail pipe and poor or jerky pickup then you should get it cleaned for sure. It has no harm whatsoever but before doing this better first of all check all the necessary points like spark plugs if found exhausted or their electrodes are corroded then replace them with new ones, clean or change air filter, clean throttle body, get readjusted valves clearances, check spark plugs wires/cables for weak current supply, change them if found faulty, clean or change clogged fuel filter.