SportShift transmission?

Hello, new user in the market for a nice 5th gen. Prelude... I've been wondering how the SportShift automatic works exactly... how close is it to really driving stick?

I must say that it's appealing to have the choice to shift or not to shift... sometimes I wish I had an automatic just cause I am too busy with something else in the car, or it's really late and I'd rather just cruise than shift gears all the time. But I won't accept a power-loss, if using the SportShift would affect torque or HP. Can someone give me some feedback?

Thanks lots!