Harrisco's academic services are very helpful for us living in Seoul.
We, using English as a second language, have some difficulties in expressing our views on the sophisticated business and academic field. In that case, the services of translation and proofreading provided by some brands like Harrisco are so useful for me, maybe most Asians.
I know the brand Harrisco very well, uses their sevices frequently since I have known the brand several years. They are kind, devoted and sincere, though sometimes some dissatisfaction. There're some brands supplying this kind of language services and most of the brands are small business. So, there have been many ups and downs in their business management, but they are never so bad as somebody in this American website criticizes.
The brand 'Harrisco' is, also, not so big scale, but I know they have the longest history and the largest scale of client lists in Seoul. I hope this kind of service prosper healthily in Korea and all Asian regions.
Finally, if you're non English native speaker, like me, I recommend this kind of language services, especially Harrisco. Always, good luck for you!