MacBook – Resurrection of the MacBook Pro

No, the 2012 and early-2013 Retina MBP SSD's are not PCIe-based, so you could not install an SSD from a late-2013 Retina MBP.

Recommending specific brands and models can be tricky (and this list will probably be out of date in weeks), but at the moment some of the SSD models that get positive comments from Mac users include:

• Samsung 840 Pro series
• Samsung 840 Evo series
• Crucial M500
• Sandisk Ultra Plus

As long as the drive doesn't require any additional software to be installed, you can be almost certain that the drive will work fine with OS X. That said, once you've narrowed down one or two models I'd recommend doing a brief search online to see if there are any drawbacks or known problems, just to be on the safe side.

TRIM won't be supported with a third-party SSD, but you can use TRIM Enabler to work around that.

Personally, I have several Samsung 830 and 840 drives and a Crucial M500 and can recommend them all highly (top of the pile would be the 840 Pro).