I've now put about 160 rounds through my newly acquired 5904 & I love this pistol. Everything is currently stock, but I may eventually replace the grips. I think I have average sized hands & the 5904 fits nearly perfectly & even with the stock, hard plastic grips, it's not at all unpleasant to fire, but I may put rubber grips on if I decide I want to play with this a lot more at the range, which I may because it's a lot of fun to shoot... I find it to be a well balanced, solid pistol, nice trigger, not one jam or misfire yet, using Winchester target ammo.