I use photoshop constantly... and each time they changed it (3 to 4, 4 to 5) I never liked the new layout and interfaces... but after I adjusted to each, I never would want to go back.. like always paste to a new layer.. at first I hated it.. but I've gotta say that my fav part of photoshop is the layer effects... my least favorite part would be the programs new-found inability to create italic and bold states for fonts that don't have them.