I got one as a short term solution while waiting for a quality leather IWB.
I love it, canceled my leather IWB order. It took a couple weeks of constant checking to trust it, though. I'm a fanof quality leather, so this is kind of a sea change for me.
I can set it at my preferred cant and position. It just plain stays, there. I have to readjust my leather IWB's every time I climb out of the truck. The Remora doesn't shift at all.
Does it "not shift all day?" I don't know? I pee every three or four hours.
I drive truck and the extra padding, in conjunction with attaining MY perfect carry position. Makes even 12,14 hour shifts, no problem at all. I've loaded and unloaded, climbed around, helped friends move, etc...it works.
Not so great for pocket carry, for me. The holster always comes out with the gun.
I use it on a sub compact nine (Sig P290RS). I don't know how it would work on something bigger?