For me it's what it does, not what it looks like that's important.
A lot of the stuff I did with linux was done from a shell, or an xterm. Most of the stuff I did on the Amiga was through cli or an early version of DOpus.
The first time I used Xwindows I used FVWM, which looked a lot like that window manager, and ended up being very customisable (is that a word?).
Still, it's what it does over what it looks like - I prefer my 'clunker' running linux and Amiwm or Amithlon over my very speedy editing system running WinXP for 90% of things, because they enable me to do more of what I like with less B.S. (like 'outguessing me' over what I really want to do).
That's my 2c worth anyways.
Siggy