To the OP: while my experience in Skyhawks is limited without a doubt if your "new" instructor feels like you are a horrible pilot and hates his job DO NOT fly with him/her again...it will be a waste of your money and time. There may be some subtle differences with the newer aircraft and a truly experienced and professional instructor will explain them to you. It's unfortunate that instructors like this ruin it for those of us that really do understand what it means to be a professional instructor.