Some reviews regarding the Macbook Pro 2015
https://arstechnica.com/apple/2015/04/ultrabook-plus-the-2015-13-inch-retina-macbook-pro-reviewed/
http://www.t3.com/reviews/13-inch-macbook-pro-review
https://www.notebookcheck.net/Apple-MacBook-Pro-Retina-13-Early-2015-Notebook-Review.139621.0.html