I'm arranging a dinner for my boss along with 9 clients and colleagues in Paris in mid-September.
Atmosphere: Quiet enough for them to hear each other, but not too cramped, stuffy, or formal.
Price: My boss has a high taste level, but I think the top Michelin restaurants are too expensive for such a large party. I would put an estimate of 100-125 Euro a head, including wine.
Location: Anywhere in the city would be fine, as long as it is in a nice/safe/clean part of town.
Thanks for your suggestions.