I think everyone's problem with the new version of Two and a Half Men is just that they cannot throw out the old, and welcome the new.
I personally think, Ashton Kutcher has brought in quite a bit of color to the usual mundane, dark, cynical plot in this show. Albeit, that's what Two and a Half Men is supposed to be, still Kutcher's character is what the show really needs to spark it up further. All I'm saying is, give it a little bit more time. It will pick up.
The jokes are still funny, and Alan, Jake, Rose (though I'm not sure if she's going to be a cast regular now), Bertha are still the heart of the show. We're all just judging too quickly, and all 'Charlie Harper' fans are still bitter of his demise. In all honesty, how much more of drinking, and frolicking with one girl after another can bring in the laughs? Eventually, that'll just go to the bin too. Maybe it's a blessing that Sheen isn't in it anymore. Give Kutcher a chance, pretty sure he can sway some of the negative opinions and pick up a few more fans. I really don't want this show to be canceled. I'm a HUGE fan.