We were in Paris a few weeks ago and, when wandering around rue Turenne and opting for a lighter lunch than what Cafe des Musees offers, we stumbled into a new restaurant.
Noctudine was the name of the restaurant at the same location, but these are new owners and, from what I understand, a new menu. We were there on their 2nd week of being open. We ate there 2 days after trying Breizh's crepes, so one can say that we had a nice benchmark.
My wife details the crepes in her blog, including pictures of them ( http://bit.ly/nvsgjI ), but my end comment would be this: the crepes were equally tasty, if not tastier, than what we sampled at Breizh, and the price was significantly less. The owners were also charming and nice and provided great service.
My only complaints would be a) their selection was less than Breizh and b) their drink selection was weak. Otherwise, I'd choose Noctudine's crepes over Breizh's crepes.
Just providing some crepe options for you....