Well I'm always slow to change but Exmark/Toro have had these units in the field long enough to get a good idea of how reliable the new Parker unitized pumps and motors will probably be. After John Deere had problems in the early versions of the unitized pumps and motors I got kind of a wait and see attitude. So 1. Give me your thoughts on the Parker unitized units after using them for an extended period of time. 2. Are they reliable? Have you had any problems and if so what kind of problems. 3. Will you buy again? etc.