I ended up picking up one this weekend and have to say that both the boy and I are very happy with it. We didn't get a lot of time to shoot it, but we went through a couple of boxes of .410's and killed several clay pigeons. The only negative about it is that the ejector wouldn't push out the .410 hulls, but I have read that that situation is somewhat dependent on the brand of ammunition that is used. We used some cheap (relatively) Centurion loads, so I wasn't too wound up about that.
We fired off a box .45 lc as well and I was pretty pleased with the accuracy. We only got out to about 25-30 yard, but we could hit clay pigeons laying on a dirt pile with pretty good success. We didn't have any problems getting the brass out of the cylinder with them.
It did come with two different chokes - or one choke and one thread protector. The barrel is rifled, so to shoot .410 shotshells, you put in the straight-rifled choke, which I guess maybe takes the "spin" off of the shot and keeps a tighter patter. For slugs or .45 round, you put in the thread protector which I guess keeps the "spin" going. From what I understand, it doesn't hurt to shoot either round with either choke, but you accuracy or patterns may suffer.
There are blast shields on either side of the cylinder. I shoot right-handed and the boy shoots left-handed, and neither one of use felt any kind of gas/overshot/etc. from the gap between the cylinder and barrel.
Overall, I'm very pleased with it so far. If I have any issues, I'll update the thread for future use.
Good luck and take care.