I'm reading all the replies, because these are the two I'm considering. The two I have are the faux PR editions, and I was unaware of the crown problem, so I can't wear them. Regardless, I'm going to buy a ZF, and hopefully it will be fabulous. Now, to figure out which one...
I am always particularly gentle with the crown because in the end it is a question of wear and tear. Those screw down crown threads are very delicate on any watch, rep or gen.