M G.
Yelp
Overall: Really overpriced.
The first thing to know about Lamucca is that it is incredibly popular and busy.
Second, like many restaurants in Spain, the lunch hours are 1:30 to 4:00 PM (I think) and dinner hours are 8 or 8:30 PM to 2 AM (I think), so it won't be open if you try and go in between. It is not open continually from 1:30 PM to 2:00 AM as shown on in the business information. They observe the siesta, like most places in Spain. This isn't a complaint, just letting you know in case you're trying to go.
Now when you combine those two things, you'll realize it's pretty hard to find a table when you probably want dinner. We showed up at about 8:30 PM on a Friday night and were told the wait was one and a half hours. Luckily there was some room at some of the bar tables, where they would also serve food, so we didn't have to wait that long. Our waiter was a nice guy who spoke a bit of English with an accent and he was able to take our order and get us started.
For an appetizer we ordered toast with tomato, which we thought would be like a bruschetta. It was whole grain bread that wasn't toasted with a sort of chunky tomato salsa. It was all cold and kind of soggy, definitely not that great. For dinner we ordered the lamb chops, the steak (400 grams ~ 14 oz.), and the veal carpaccio. The lamb chops were tiny and there were very few, though the potatoes were really good. The steak was surprisingly larger than expected and was very good. The veal carpaccio was incredibly light, almost flavorless and pretty unsatisfying. For dessert we ordered two brownies, one with vanilla ice cream and one with banana ice cream, and a tiramisu. The brownies had lots of nuts and though they were priced with the ice cream, the ice cream was actually charged in addition to the expected price. The tiramisu was a bit more coffee flavored than I would have liked, but overall good.
Overall, the only items that were to expectations were the steak and the tiramisu. For the amount that we ended up spending, it was a wholly underwhelming experience. I had many more impressive and less expensive meals just about everywhere we ate in Spain. If you're going, get the steak, but I would recommend finding somewhere else to eat.