Tom
Unfortunately there are many instructors who are simply in it for the hours. I feel these guys simply lack pride in what they do and they have no appreciation of other peoples aspirations. Having instructed for many hours, I felt morally obliged to spend time with students and give them some value for their hard-earned money.
Just remember, this guy has few concerns about you, and it is your money!
Have a word with the CFI. Tell him your concerns and let him try to put things right. It's his job to kick ass and to allocate work to instructors. If the guy's not interested I wouldn't give him any work.
What you learn now should be the building blocks for your aviation career - you deserve to get decent instruction. Don't worry about making waves, your comments might actually help in the long run.