I dont think its worth the money. Remmeber, the gen is a 5-10K+ watch and thus comes with a box and papers worthy of such a price. The boxes are decent rep's, but there is always a little flaw or not smooth edge or overall good, but not great look and crispness to them that just seems off.
I have a few rollie boxes as gifts from the dealers and a breitling, cartier and pam box. My wife's Cartier was given to her in a box I look all over for and paid top dollar, when it arrived, very nice, but no way Cartier would produce it. Any box does not pass as close to gen in my opinion. Are they are cool to display your watch for yourself though?, sure!
If you dont have one, I'd buy a nice watch box with a display top for all of your watches