Hello, i'm about to place an order for a pair of Dell P2715Qs for my Mac Pro 2013. It's hard for me to make up my mind because of mixed reviews of this monitor in the forum. Some experience problems or dissatisfactions and some are delighted with it. So, i'd like to ask, will this monitor work well with my Mac Pro and does it give near or same retina-like sharpness like a 15" rMBP? I plan to run them at 2560x1440 and plan to have dual setup. Thanks