So we've all had PS4s for a while, mine launched with the 1.51 firmware and so far I haven't had one crash. Crashes I would sometimes get on the PS3 usually consisted of a game lock up, or when exiting a game my machine would restart rather than going to the XMB.
Not had any of that on my PS4. The OS is quite fast, we've all seen that, just wondering about stability experiences so far.
I've mostly been playing AC4 and Resogun. I have heard BF4 is quite bad at locking up/crashing.