The only way I'd own a ported rifle is if they gave it to me and I could trade it for something better. Well, you get the point.
I've had more than a handful of bad experiences. I've seen people get up and leave the range when guys start shooting them.
The latest.. I was standing in the lane next to a yayhoo shooting a ported GG and a piece of debris caught me in the left cheek and left a nice cut. I thought he had a bad handload and burst a case. No, it was the blast from the ports.