The first time we all went for dinner and had a great table upstairs. As much as I wanted to order the Carnitas, since that is an easy dish to compare Mexican restaurant to Mexican restaurant, I didn't because my other rule is to try unusual things on menus so I wound up getting the Lamb Borrego enchiladas and couldn't been happier, they had a wonderful flavor and texture. My father loves moles (that is Mo-Lay, not that little fur animal that digs up your lawn) so he had the Mole de Xico enchiladas, which he liked a lot, but did say he would leave off the queso fresco next time.
DW had the dinner salad, chicken and rabbit food, very much like a Santa Fe salad, but she liked it so that was what mattered. Mom had the fish Guajillo Style and loved the sauce. Had two DS with me who of course both had the Prime Rib since dad was buying (actually gramps picked up the bill in the end, same difference to them though). The prime rib was actually great, but the roasted garlic & corn, potato puree that came with it was even better.
All in all, it was much more expensive than we would pay at most of our "got to" Mexican places on the mainland, but not out of line with a place like Javiers, Candelas or Border Grill and I think the food is at that level. We would and will go back for dinner next time we are in Poipu.
The second time we went was "boys only" and it was for late "lunch". Mostly it was an excuse to drink margaritas and good tequila, but we got four different kinds of tacos plus appetizers. We got the four different tacos so we could mix, match and share. I was disappointed they didn't have carnitas for their tacos (maybe I should have thought to ask), but we did get the pork loin tacos and they were great as all the choices were. Again, expensive compared to your average taco truck or down home place in CA, but not unusual for what I pay at the hoity toity places in CA.
Service was very good and friendly both times. The 'folk' won't be eating here a lot because of the price points, but it should be in consideration as a special occasion place for residents (to avoid that whole "local" vs "resident" debate) and as a place to try for visiting tourists.
ps. sorry, it is an excellEnt restaurant and it is Tortilla Republic Grill + Margarita Bar, not sure why the name didn't populate in the review.