I have been told that they have a pretty stout recoil.  I don't think it can be any worse than what we put ourselves through shooting 3.5" shells, if you're one that does.  
I think you'll have a lot of fun with it if you purchase it.  I just got an Optima Pro muzzleloading shotgun last year and I had a blast with it.  It's going to the woods this spring.