Functional Parts of the Product Purchase Recommendation
1) Your introduction should describe the kind of product you researched, the reader most likely to need the information and why they're going to need it, the kinds of product-rating information available, and your evidence and reasoning for believing the sources you chose to use.
2) The body should explain the most important issues in making the purchase, drawing on the best readers' needs and the product's most important features. Set up your evidence and reasoning to construct a logical "sieve" that reduces your field of possible products, step by step, until only one is left as the best or least bad of the group. Quote sources only when necessary but cite all sources properly, especially when paraphrasing and summarizing. Follow MLA style for in-text parenthetical citations, making sure you put the period outside the parentheses, like this (Sanders 1).
3) The conclusion should discuss the advantages and limitations of the product you are recommending vs. its competitors' advantages and limitations, concentrating on those features that are critical to making the decision. Your information sources' strengths and weaknesses will require discussion, either at the beginning of the paper (if they're a big problem) or at the end of the paper (if they're not much of a problem).
4) Because this is an academic recommendation, your readers will care about your source quality. Be sure you include a Works Cited section in proper MLA format, and follow the other standard format conventions we expect from writing in a Humanities course.