Sounds like you're at a place where interns = free labor. Don't be a coward loser and give your preceptor 5/5 stars and raving reviews during the evaluation. Seriously, that pisses me off when students do that. As someone that wants to teach the future pharmacist, that would piss me off for a student to tell me I'm doing a great job when in reality I'm terrible.
By the way, remember when your preceptor asked you "what do you want to do when you graduate"? That wasn't curiosity. When a student tells me "I don't want to do hospital, I'm gung ho retail", I really don't invest much in the student. I give them a basic experience and send them on their way. Why should I go out of my way to teach someone who doesn't want to learn? Not fair for either party involved.