This was the first time I used AirBNB, and if all my next experiences are the same as this one, I'll never have stay in hotels again. The house is in a nice neighbourhood - not many places to go by walking, but with a $5-8 Über you can reach every nice place in town, including downtown. The house is amazing... the bedroom is very clean and tidy, as well as the bathroom. There is a very nice private living room with a huge TV. There is absolutely room to comfortably accommodate up to 6 people, in my opinion.
I did not have the chance to meet Alyssa (mostly because I just stayed for 2 days and a half and my days were really busy), but she kept in touch all times and guided me though everything. They have a lovely dog, that made me feel even more welcome. If you are looking for a place to stay in Nashville, I would definitely recommend Alyssa's place.