Ford Fiesta 2012: Transmission shuddering

We also have problems with our Ford Fiesta's transmission. We purchased our car in 2012 and have had problems with shuddering throughout the time we have had the vehicle. We have had the computer adjusted twice, one new clutch and we have been waiting some months for another new clutch. Fords keep saying they will keep fixing the problem up to 100,000 kilometres and we are now at 55,000. We are concerned that the problem will not be solved long-term and we are not happy with Ford and the Ford dealership's reassurance that this problem will be solved. It has been very disappointing to purchase a new vehicle which was to be passed on to our granddaughter when she turned 18 this year and not be confident there will not be ongoing problems.  We are reluctant to pass the car on as we are worried about the loss of power that occurs. Do you know if Ford have solved the problem with the transmission on these vehicles?