The wonderful flavours of the Mexican cuisine attract a lot of guests. Ordering perfectly cooked guacamole and good tacos is what a number of visitors advise.
Nacho Libre is great for an affordable Mexican fix and is my go-to eating place in the Donau Zentrum. Price and serving size are both reasonable. Service is very fast. Most of all, I like how fresh and filling their soft tacos and burritos are. I have tried on different occasions the chilli con carne, the grilled chicken and the vegetarian option. All are good. The mixing of the different textures of the various vegetables and fillings brings joy to the mouth. Always, I ask for additional Guacamole which really blends well with the Sour Cream. Then I put some of the Orange Chili Sauce which is available for free on every table. The result is a tasty and appetizing but not overly powerful Mexican flavor.
I was looking forward to trying this place when they had advertised they were opening soon, but unfortunately, I was disappointed. At first glance, it looks like a "Chipotle", where you can actually see them prepare all the food right there in front of you. But when I actually took a bit into my food, it was mediocre at best. I first tried the carnitas (shredded pork) burrito, and it was quite bland-tasting. The white rice they put into the burrito had no seasoning (it was just plain white rice), and I don't think the black beans had any seasoning, either, so that sort of explains it. Even the carnitas barely had any flavor. I then moved on to the tacos, hoping it would be an improvement. Not much here. Tasted pretty much the same with the barbacoa meat (shredded beef); the sour cream didn't help much. Overall, it is not a bad place, but it is definitely not Chipotle, much less Tex-Mex. Unless you're going to visit Taqueria Las Mexikas (which is arguably the best and authentic Mexican restaurant in Vienna), the only other option for a decent burrito is ordering a dürüm from any one of them ubiquitous Turkish places all over Vienna; their version of a wrap or burrito is a helluva closer than Nacho Libre's!