Quoted from Kugelhagelfisch:Don't get a Tommy if you don't like the theme. It will always annoy you and you'll never be quite happy with it.
I was about to say that. There are A-rated pins that I don't like because of the theme. I thought about buying NGG myself but just couldn't get into it. It seems like it has all the right ingredients but not the right chemistry. Maybe that is because I am not a golfer.
I have not played Congo but it seems to review well. Like Syco, I liked World Cup Soccer and it seemed to have a lot going on. Dr. Who is also another pin that surprised me when I first played it. I don't know how deep the rules are, though.