My nephew has one of the combo kits. It seems to be a well made set up. It groups nice, is really easy to switch barrels on and it's very affordable.
The only issue I have is with the way the safety works. It is safe, it is effective, but for a drifty snot like myself, I want a safety to either block the trigger, or remove all tension so I know the safety is on if I try to shoot.
Nephew missed out on a gift doe because he and I thought he had a misfire thing going on because the hammer dropped but the shell did not fire.
The safety prevents the hammer for fully falling, but does not change the feel of the trigger.
There than that, great gun for the money.