I've got a MacBook Pro, late 2012 model that I've had from new. It was fitted with a new SSD early last year. I use it for Logic Pro X for hours each day, it copes fine. If anything happened to it I would certainly buy another. I use iCloud as a backup, it also means I can access my files from any device anywhere which is brilliant. I've only got the standard 4gb of RAM and have never really had a problem, it depends I guess what you're going to be doing with it, I run some quite processor-hungry plugins in Logic sometimes without a problem.