Some of those sites employ non-native speakers and writers without university degrees and that might impact on the quality of their works. To avoid this, read as much custom reviews as possible. You can also check the requirements for applying on the service as a freelance writer.
In college, a student gets to write too many types of essays. The type of essay writing service you hire must be able to write in good time. If you need an argumentative essay and all they can manage is an expository essay, then they are not the best source of help.
You might think that custom writing started with the internet, but did it? If you go down history, custom writing started back in ancient times before the invention of the written word.
Do not always settle for any cheap essay writing service that you can find. If you spot a website that offers cheap essays within hours, or they say they are the best option for your writing needs, look the other way confidently.
Identify if you can access their customer service at any time of the day. This is crucial because you do not want to entrust something crucial to your education to someone without knowing what is going on with the assignment and the success at the same time.