I carry a Kel-Tec P11 in a Remora and really like it. Very secure worn on strong side hip, and like you say, very easy to take on and off (or in and out, I guess). I've been looking to trade the P11 for a Shield, but will definitely keep using the Remora! I've even carried in elastic waistband shorts, under a t-shirt and it doesn't move. The Shield is a bit heavier, so might need stiffer pants and/or a belt to supply some pressure, but it doesn't need much.

Patrick