I fired a friend's and the patterns with the PDX were terrible. The BBs went all over the place and sometimes, but not always, one disk would be 6 inches or more away from the others. I wish Winchester would stick another disk in and forget the BBs. If I had one, and I plan on it, I'd load the Federal OOO. I think my kids will enjoy it.
As for HD, sure. If you have someone who can't use a 12, try the .410. I still have a Mossberg HD410 I use sometimes. A few Tuff Strips of Federal and I feel good about using it.