TBH I never ran MOS that much, but at least I tried it and I liked it.
I think MOS is very professional looking, desktop is superb with nice icons. And the most important, you can tell its from Amiga roots but its one step taken further, for example prefs are remade etc...
I can not really understand Slashdot users bashing it. Fine you can do all you want with Linux but surely other than Amiga zealots must like the way an Amiga "like" OS is structured?!
I would really like to try out some 68k applications in MOS, I was a bit disapointed of that in OS4.1.