I'm thinking about getting one of these and have a few questions:

Which model do you prefer, and why?

If I just buy a frame, and buy a barrel later, are all of the barrels compatible? (i.e. encore frame and encore barrel)

Can you shoot off the shelf ammo well, or do you find you need to use custom reloads?

And vs. Traditional pistols... Is it pretty much trading the range with a traditional pistol vs. Rifle Cartridge.... or is there any other pros or cons, I should consider?