In an old review of Diego's Downtown in Downtown Santa Ana, I wrote it "straddles two disparate dining universes–hipster restaurants on one side, countless regional Mexican specialists on the other" trying to appeal to the customers of both.
Unfortunately, Diego's closed earlier this year after about two years. This, however, does not mean that the dream died with it.
Proof: Luna Kutsi, which I've been eyeing for a while since it moved into the space left behind by Memphis at the Santora. It recently had its soft opening and from a cut-off photo of the menu that I saw on Paninoteca Maggio's Facebook page (they were invited), it looks like they're going out of their way to represent all parts of the Mexican food landscape, taking note where each dish hails from: a quesadilla frita from D.F., a huarache from Yucatan, and a tostada (probably a seafood one) from Ensenada.
More details as it comes.