I'll be in Paris shortly, two weekends in a row. I'm having a tough time deciding what to do for the two Sundays. I think we'll spring for something more expensive one Sunday, like Gagnaire. But for the other Sunday, I did some research, and found Yam'Tcha but didn't see many reviews on CH.
I love all sorts of food (never met a cuisine I didn't like!), but I've generally not been thrilled by fusion restaurants. At least the ones in the US, I've often felt like I could have gone to an Asian restaurant that would have been just as good for half the price. But a fusion restaurant in Paris could be a different experience.
I had an excellent meal at Yam'tcha about a year ago. I found their interpretation of fusion to be French preparations with a restrained use of Asian ingredients, and the tea or tea/wine pairings were delightful, beautiful presentation. The setting (pierre de taille) is very nice too. Your biggest problem is going to be getting a table, you have to call on a particular morning each month. Other options in this vein if you can't get through might be Passage 53, Sola or perhaps Agapé Substance. Enjoy
It is on an interesting list from Alexander Lobrano a reliable critic which I stumbled upon recently - he includes Yam'Tcha in one of his recent top 10's - and the other restaurants do give his review some context: http://www.guardian.co.uk/travel/2011...
It has been on my "must try" list but as I live in HK it never makes it to the top.