I don;t own one. But I did get to fire one. in all honesty, nothing special. The muzzle break really kept the recoil down. It had the same kick as a 338 win mag. The one thing that stood out was the pressure wave. It really slapped me in the face. Not terrible, but you knew it was there. And yes it was loud!
Don't own, but have fired many in my day. Depending on the model, you also have a barrel that will recoil slightly keeping the receiver fixed. That mixed in with the muzzle break removes about 60% of the preceived recoil, and as such feels no more than a 12 gauge.