You would be surprised, I've had gens for 15 years now. I can't speak for others but I like both. Actually when I say both I really mean franken's and gens, I don't like reps that have no gen parts, unless it's a very well done vintage Rollie that speaks to me. I like those for my vacations.
I was so excited when I happened onto this forum a few years ago, the idea that I could build a watch that was unattainable in its gen form was a mind blowing experience. I've always had gens and I always will but I will also always be interested in this hobby. I've learned more in the past 3 years then I ever did in 12 years without this forum. Imagine how much more a car restorer (weather he uses some aftermarker parts or not) knows about a given car that he worked on compared to the guy who bought it from him..
That fuchsia insert came with the kit, I prefer all black but I really like this one too.