[plt-scheme] defstruct and class?

I am playing with the Netflix recommendation system which involves 17K+files and massive amounts of data.

I want to represent (and save) the parsed data in various forms and Python like classes would be perfect.

Should I use defstruct or classes? classes seem complicated and not exactly as classes in other languages.

I want to represent Customer as:

class Customer:
    def __init__(self, idnumber):
        self.idnbr = idnumber
        self.reviews = []

    def addReview(self, review):
        self.reviews.append(review)

    def hasReview(movieId):
        doSomething
    




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