Ok, this has bugged me since 4.2 series, and I hoped it'd be fixed for 4.3, but apparently isn't.

Compare dragging the window to the desktop edge in order to move it to enother desktop in Kwin and Compiz - in Kwin, the window movement isn't smooth, like in Compiz - the window sort of 'jumps' before it settles in the new desktop. Can I get rid of that? any fix planned?

You may wish to check to see if a bug report has been filed at bugs.kde.org regarding this, and file one if it has not.

Ok, will see. Are you getting the same behavior as I do? Or is it a user-scecific problem of mine?

PS.: I will file a bug report today. I tried searching for "window desktop edge" "window edge" "window edge switch" and didn't find any relevant bug.

It's pretty smooth for me. Could you please tell us which KWin effects you use, which is selected for desktop switch, graphic card and driver etc.

I might have the same woes.

When I use my "move current window to next desktop" keybinding, the window gets placed on the next desktop, and then the desktop switch takes place.
I like the smooth "grab the window and switch the desktop in the background" way of compiz alot better.

Also I wait until more animations and effects are added to the kwin options. So far I cant find a setup that really pleases me, as compiz does: Sliding the windows properly, slide-in animation, being able to assign different "appear" animations to windows and menus (kmenu opening via "zoom in" is just silly, imho), etc.

But I keep my eye open for changes made. Hopefully some day kwin will be as complete.