My wife and I are friendly people who love using Airbnb to experience the local accommodations and meet locals. We live in London where we met. I'm American and she is French/Spanish. She speaks English, French and Spanish, while I am limited to only English.
A great apartment for us is clean, centrally located, has a real bed, has windows, and has wifi. A functional kitchen is very nice but not essential. A bad apartment is dirty, dark, and/or smelly.