Does it really matter which test prep company I use? Aren't they all more or less the same? And if they're all pretty much the same, why not go with the cheapest option, or the easiest to schedule, or the biggest brand name?
These are fair questions. But choosing between test prep firms is not like choosing between car dealerships, where two firms are selling the same Lexus and the consumer's only real concern is the price. Choosing a test prep firm is actually much more similar to choosing a lawyer or a doctor as there are often large differences in terms of quality and results from one firm to another.