So my husband is Peruvian. When his grandparents are out of town and they obviously can't cook for us, we like to stop by Las Americas to get in our fix.
I've traveled to Peru twice and have been eating the food for years, so I'm familiar with how it should taste. Las Americas does a great job with their recipes. The food really tastes authentic and makes you forget that you're still in the States. My favorite dishes here are aji de gallina and pollo a la brasa. I also drink about half my weight in chicha, which is a drink made of purple corn. It tastes like this weird iced tea, but it's sweet and delicious. My family has never complained about the food and this is a regular spot for all of us.
The ambiance of the restaurant is casual, yet a bit relaxing. The windows are blacked out, so the temperature always stays cool and the sun won't ever glare in your eyes. The restaurant also has large pictures of various regions of Peru, which is a beautiful sight and perfect for photo op's with your family.
Las Americas sometimes has live music on the weekends and they also serve picarones on Saturdays. They sell some Peruvian goodies like alfajores (my fave!), turron, Inka Kola, and they even sell custom cakes. The servers are always friendly. Check it out!