Forum Mathematics Sigma and Pi are officially 10 years old now. Have they been a success? On this forum, these journals are some of the most hotly debated.
These new journals, championed by Gowers and Tao tried to significantly reduce the cost of publishing, however they also decided to use a different model, and pass the publishing charges onto the authors instead of the readers (e.g. institutions, libraries, etc). Currently the article processing charges are 1500 USD per article.
What do you think? Are these journals high quality? Does their business model make sense long term? Are they good to have on your resume? Do hiring committees care?