I feel compelled to post on my dining experiences in Tulum (just got back Monday) since I did take a lot of recs off this board:
El Tabano - We went for dinner only and it was really amazing. Between 3 of us, we shared the pear & brie salad (5 stars), jalapenos rellenos (5 stars), albondigas (4 stars), pollo rojo (4.5 stars) and lomo de cerdo (4 stars). I thought it was a little odd that our entrees were served with no sides at all. It was just meat on a plate. We decided to order a side of rice when we got our entrees, but the rice was the tiniest portion ever and a little watery. The electricity was out for most of dinner, which was fine for us, but we noticed the poor cooks were struggling to cook in the dark! If there is one place I would return to, it would be this one.
Cetli - Our dining experience here was unique and incredible. We were completely charmed by the chef (Claudia, right?) as she intricately explained every detail of her food. You could just tell how passionate she is about what she does from her voice. The food was innovative and extremely tasty. While the mole is probably the best I've ever had, it's not the type of flavors or texture that I crave. I would highly recommend going, though.
Urge Tacqueria - Street tacos. Really good fish tacos...I didn't love the shrimp ones, nor did I love the shrimp ceviche. The salsa bar is a nice touch.
We ate another lunch at Sian Ka'an as part of the inclusive kayak tour package. I was a little disappointed that lunch was included b/c I wanted to try another restaurant, but was more than happy with the lunch there. It was a chicken stuffed with ham served with a side salad and tortillas. It was such fantastic, home-cooked food. Everyone on the tour couldn't stop raving about it. The restaurant itself has the most beautiful view of the beach and lagoon on the other side. So gorgeous.
La Zebra - We ate here on our last night since it was salsa night and we were staying there. I didn't love it. The shrimp ceviche was pretty tasty, but that was it. The lamb was pretty good, but the seafood wasn't that good, which is shocking because grilled seafood isn't that complex. It was also, by far, the most expensive meal we had. We also ordered the guac in the afternoon and it needed help. They basically gave us mashed avocados. They had not so nicely diced jalapenos and cilantro on the side. Once I re-chopped the jalapenos and cilantro, we added that in, plus salt and a couple lime wedges, we finally had ourselves a decent guacamole, but why the heck did they serve deconstructed guac?
We ate breakfast at La Zebra one morning and Casa Banana the other. Casa Banana had better food, but I love the ocean views at La Zebra. Iced coffee at Trecelunas was awesome. We couldn't eat there because it was too hot and there were way too many mosquitoes.
On our way back to Cancun airport, we stopped at La Floresta for tacos. OMG, they were so good. I only tried the fish tacos (I was scarred from Urge). Well worth the pit stop.