I received my 960 Pro 1TB about a month ago. When I first received it, it benched exactly as expected (3300-3500 read, 2100-2200 write, and all the randoms were fine). Keep in mind this was in CrystalDiskMark running a 1GiB test size.
Samsung Magician V5.0 had no trouble making the drive look excellent, either. 3500+ read, 2100+ write, 450,000+ random read and 360,000+ random write.
Fast forward to today: Randoms in both test programs seem fine. Sequentials have bombed, though….