I bought a Miami Classic years ago for my G19. Later picked up an offside tie down. It has a double vertical mag pouch on the offside.
It's ok, the shoulder straps are thin and after all these years I don't think it's adjusted properly.
It's no fast and you have to be aware that your gun is in a different location if you need it.
Other than that it's great for driving.
Best,
-Coop