The crepes and coffee are both very, very tasty. Every time I've been, I've really enjoyed both, but it has always taken quite a bit longer to get my order than I've been told it will be. Instead of the ten minutes I'm told, it's usually more like 30 minutes, which is quite a bit of time in such a crowded place. There's nowhere to stand and wait that isn't in the way somehow.
If you can go during off-peak hours, you'll probably enjoy it more than I have so far.