Pros
I have been working here for over three years now, including a bit more than two years as a senior proofreader, and can recommend the company for its flexibility and consistency. Although remote, independent work is not for everyone, for those who prefer working from home and devising their own schedule, this is a good option to consider. I like the fact that I can proofread alongside other part-time jobs and tasks, and the company is very amenable to amending employees' workloads on request. A proofreader really is able to do as much or as little as they like on a weekly basis.
Cons
As may be expected, some proofreading tasks are more time-consuming or challenging than others, based in large part on each author's written proficiency, but that would be the case of any proofreading company.