Personally I find a big difference in feel and comfort with these Hogue Grips as compared to the stock grips. Very easy to install. I'd like to replace the black hex screws with the stainless steel head grip screws just because I think it would look better. But yeah, I'm totally happy with these new grips.
One other thing - I remember seeing a video where the guy said experienced shooters avoided grips with a finger separation. Don't know what's up with that - this finger separation fits my hand perfectly.