@Eric: Also, don't care about 3 Thunderbolt 3 ports. They're of 0 use to me w/o adapters. I work on iOS software. I use the Thunderbolt 2 ports and Magsafe on my work laptop each day, since I have 2 Thunderbolt displays. I plug in USB iOS devices sometimes directly into the laptop. I also at least daily plug in a USB 3.0 external hard drive for Time Machine backups. We sometimes project at meetings via Thunderbolt 2 or HDMI. Now I need to be a "pro" by needing a wad of adapters.
With one of these new laptops, my displays can't power my laptop and the extra Magsafe brick will become useless. I'll need to spring for a $79 brick + $19 USB-C cable. And, if I don't scavenge a power cord from a retired machine (so the brick doesn't block a bunch of outlets), it's another $19 for a cord: https://9to5mac.com/2016/11/10/opinion-m....
@Eric: FWIW, my work early-2013 MBPro Retina a few months ago suddenly stopped booting reliably or even getting to the Apple logo. It probably had the problem listed at https://www.apple.com/support/macbookpro.... Fortunately, the helpdesk at my work had an identical vintage machine in storage, so we just swapped SSDs, and I was good to go in under 20 minutes.
Try that if the SSD is soldered to the mobo.