Actually depends on the ammo.
The shells in the belt are Challenger target loads. That's a Canadian brand. 1 ounces of 9s, in those blue shells (7 1/2s are red. I think it's nice that they color-code their ammo). They feel like a 12 gauge going off. Only other stuff I've fired in it is S&B 00 buck. It's quite comfortable.
I believe, though I have no way of proving it, that the Challengers are loaded with a fast powder, and it all burns in the eleven inch of barrel, and therefore gives me full recoil, while the S&Bs are loaded with a slower powder, to take advantage of the 20 to 30 inches of a hunting gun, and since not all of it is burned in eleven inches, the recoil is less. I have fired both brands in full-size guns, and the S&B has a respectable recoil.
I have shot aimed shots with it. Not difficult, but does take some thought and practice, otherwise you have a tendency to hit yourself in the face with it. I've shot it from the hip. Extremely hard to hit anything that way. I believe it's because of this. When you shoot a regular shotgun from the hip, you have the stock pressed against your side and that allows you to use your body to aim with. When shooting this thing from the hip, you don't have that, and you tend to shoot waaaaay to the left.
I've also shot it one-handed, like a big pistol. Not too bad, although the back of the trigger guard does tend to put a bruise on my bird-finger, if I do it more than two or three times.
All in all, this has no practical use, but it is fun.
Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297
I always take precautions.
Beware the Evil Bullet Fairies.