Bart,
I have pretty big hands and I'm right handed. Also, about 3 years ago a 300+ degree hot-head steel clothing press came down on my hand at my parent's dry cleaners. I was lucky it only stayed down for a few seconds and I didn't lose my hand entirely. The bad news was the 3rd degree burn. There was no flesh left, it was down to muscle and I did suffer some muscle damage. Part of my recovery was supposed to be doing excercises to rebuild the muscle in that hand. I, of course, being 19 and stupid, did not. Shooting a 12 gauge shotgun with a just a pistol grip and light bird loads gives me trouble. I can never get a decent "crush" grip on friend's hands while playing around. This might be part of my problem. BUT, when I first started shooting it, I felt nothing. I was in total control. It just seemed to happen around the last 3-4 mags. I found myself not holding firmly and my hand a bit tired and sore when it fired. I also might have been paying too much attention to my sighting and laxed up on the grip. I do that a lot.
All my rambling aside, no, it's not that bad. Both my buddies that are range officers that night fired it and both of them loved it. It's snappy, but not uncontrollably. Being locked breech, it's nowhere near as bad as say a Walther.