Avoid! Perhaps some of the laziest cooking I've ever experienced. I believe salt to be the lazy cook's solution to putting in effort and skill--and Onda is among the saltiest foods I've ever eaten. At nearly $300 for a party of 4 I'd say in a city full of culinary options as Vegas, your money is most definitely better spent elsewhere.
Nice looking place (far better than the rest of the dumpy, old Mirage) but I can't eat marble floors and counters and with very little effort there's better to be had.
Spoiled mussels. Gritty lobster pasta. Over-salted food. Half-attentive wait staff.