I am currently studying Certified Management Accounting to jump into a career which is weird because I took a bachelors degree in Psychology, so let me pour out what I know. Here, you can start researching on the reviews and written ratings, not just the star count, and also make a visit on the website, to see how the encryption system, placement services etc, run in that platform. This might sound weird but risking a bit by ordering a sample product might work well so you get enough quantity and quality assurance.

I could say, this is dependent on the reviews, popularity in region and the globe, and also the time period the platform has run, and also the encryption system of the platform. Also we cannot solely depend on reviews nowadays because bribing from companies to consumers occur, to post a good review about the respective platform. Sometimes, if none of the indicators are convincing inspite of a positive rating, a risk of trial and error can be chosen, like, for eg, doing a sample order.