And yet some love it!
I do believe to be fair, one has to give the new UIs a fair and honest chance. But we (as humans) tend to like the status quo, so we frequently don't take the time to get used to new changes - even to the point of stubbornly refusing to accept the change.
I never migrated to Vista. This means I was stuck on XP (which I loved) for many years before I switched to W7. At first, I hated W7. Then I got used to it and got to love it too. In fact, after getting used to W7, whenever I sat down at an XP system, I almost felt lost and certainly complained how clunky and awkward XP was.
I've gone through the same pattern several times over the years with each new version of MS Office.
To each his own, I guess.