I have the combo, I paid LGS Model 51687 for $565 + tax
The 22TMC barrel had extract issues, which is common. RIA took care of it and replaced barrel, now it runs great.
The gun is a tank, all steel double stack. So there is no recoil. It's fun to shoot. My teenage son likes to shoot it.
When I first had issues with the 22TMC barrel I put the 9mm barrel in. It worked fine but the only real reason for it is if 22TMC ammo fades away.
If I had it to do over I would probably not buy the combo and just get the 22TMC.
ETA: I googled that model # that I have.
Budsgunshop