One of the most popular restaurants in Chorzów, Kartel benefits from a good location and creates a classy understated dining atmosphere by not acting like every day is Cinco de Mayo. While the Mayan-inspired tiles, gaucho graphics and sombreros don't exactly jive, they're subtle, and the red-clay interior is probably Kartel's least offensive attribute. In addition to the tasteless name, the food is completely flavourless and unimaginative. While we admire the use of corn tortillas, what's inside them is hardly authentic; generally we could do better at home, as the coleslaw (!) was the best thing on our plate. The margaritas are simple and strong, but the closest thing to Mexican beer on hand is the 'tequila-flavoured' Desperados (produced in France). The outdoor terrace is great in summer and Kartel has proven itself to be a huge success with the locals, but a bit of effort towards authenticity would go a long way here.