Just recently on Chessbase the following excerpt appeared in an
article about chess myths and their plausibility:
What is the reason for the remarkable success of Chinese players in international chess? According to Prof. David H. Li it is due to the fact that they are all experienced in XiangQi, the combative and fast Chinese version of the game.
According to the professor, "When one is accustomed to playing a game with a higher manoeuvrability ratio, one has an advantage in playing a game with a lower manoeuvrability ratio. Moreover XiangQi introduces synergy into your thinking process and playing style. By broadening your horizon, you start to think more creatively; by improving your grasp of spatial relationship, you are visualizing more dynamically; and by deepening your analytical skill, you play more imaginatively." Of course, there is more. Simply check out the article about XiangQi and chess.
I also played XiangQi when I was younger, shortly before I started learning chess. I had some flair for the game and I liked to play it against my grandfather. Sometimes I played it online, but I haven't played in years and I don't recall ever playing it while I was playing "international chess". I'm planning to re-learn the game and play it online occasionally. I've always thought, having learned it before I learned the rules to international chess, that it has helped me in developing my chess skills.

Now, I have on many occasions played XiangQi (Chinese Chess) as well as other variants (like Shogi, Gothic Chess, or Berolina Chess). I've always felt that these variants offered a new kind of insight into chess.
However, I take issue with this so called expert professor Li. First of all, he is an amateur at XiangQi and simply doesn't play western chess. This to me disqualifies him to talk about the relationships between the two. I firmly believe that his points about the relationships are correct but you don't see me masquerading as an expert in the relationships of the two games.
What qualifies Mr. Li to speak on this matter? His books? There are many charlatans that publish books on chess ... that's just simply not good enough. His attitude? Mr. Li speaks with authority and that makes him no doubt a great leader in the XiangQi movement but other than that his attitude could be viewed as simple arrogance.
I think it would be better to find someone at the top of XiangQi that is at least a master in chess and get their input. I've seen Larry Kaufman talk about the relationship of chess and shogi and he made alot of sense. I guess what I'm trying to say (avoiding getting way off point) is that, even when a person has a valid point, until they obtain qualification I think it's better to stay silent.