I have had mine ,for a few years, and it is a 4" brl, shoots flawless, and is very accurate at 35 yrds. It will take care of any varmints you might encounter, with the right ammo.
The 4" is a little easier to pack than the 6", I have even CCW this one in the winter.
My younest daughter says it is her favorite to shoot.
The Taurus gripper grips make it VERY easy to shoot, they really tamethe percieved recoil .
I like mine, shoot it often, and everybody that shoots it likes it.