Hardware has been trouble free, Windows 10 with One Drive makes it straight forward to change machines, apps run well as a normal user account, and to my knowledge it hasn't been hit with any malware. The screen being capable of touch interface, can actually be cleaned!
In comparison, my last of the "good" MBPr from 2015 has a partially fouled screen because the slightly greasy keys touched the screen. I am so annoyed when the screen is dark but I'm in a well lit room.