I really like mine; made the gun feel a lot better. Makes them look better, too, in my opinion. I tend to like thicker grips, though. I've got Hogues on most of my cannons.
The grip of a gun is very subjective, though. What works very well for one will not work well at all for others. THe good news is the grips cost less than $20, so if you really don't like them you're not out much.