We recently stayed in this huge, beautiful house for 3 nights. It is located in a quiet, nice neighborhood in the Germantown section of Nashville and is a quick and inexpensive Uber ride to downtown. ($5-6).
The house has a beautiful master bedroom, with an awesome master bathroom/shower, (as well as two other full bathrooms--so plenty of room for a large group to get ready for heading out on the town.) The beds were very comfortable. Our varied group of eight was accommodated very easily, and depending on the make-up of your group, there is actually enough space to sleep 11 people in a bed. The kitchen is large and well stocked.
Brian, our host, was very welcoming and quick to answer any questions or requests.
I would definitely recommend staying at Brian's house when you head to Nashville!