Just picked up a new rMBP with the upgraded processor, 512gb, 16gb RAM. I checked and found that I have the Samsung display, is there a way to check what SSD I have? And is there one brand that is better than another. Also, I don't care much about performance, but would Haswell really bring a noticeable battery life improvement? The battery life I'm getting so far is only about 2.5-3 hours because I like the screen bright and run many apps all at once. Thanks.