I own both......
And they are both accurate, reliable shooters. Without a doubt, the 2 best 9mm's I have ever owned/shot. The recoil is about the same with both. Being both have the adjustable backstraps, either pistol feels comfortable in hand.
The only two real differences IMHO is one is hammer fired and one is striker fired, one has a typical tilting barrel design and one has a rotating barrel design. There really is not much more to compare beyond that. I would trust my life to either pistol in a heartbeat.
The Guinea