I don't have one, but one of my good friends does. He inherited a couple of them from his dad. I've used them before and they works great. If nothing else, they're certainly durable.
I concur with David's second point (I didn't have any problems with the primer slide.) We just left the powder measure off.
Well we don't rent pigs and I figure it's better to say it right out front because a man that does like to rent pigs is... he's hard to stop - Gus McCrae