Everyone I know who used the 360 has a lot of nostalgia for it.

It was well thought through. I mean, the 360 architecture is still with us because it avoided the traps that killed the PDP-11, VAX and the 68k -- as much as I loved the PDP-11. It's true when it came out that nobody had any idea what a general-purpose operating system looked like and it took a decade for them to productize VM so that you could run as many operating systems as you needed simultaneously.