Matt and Steph were super communicative from start to finish, which made staying here a breeze. Steph and Matt provided tons of great tips for restaurants and bars and I would definitely suggest (as they did) checking out http://nashvilleguru.com/ as you plan your trip.
The unit is attached to the main house, but very private (with it's own entrance down the drive way). The bedroom is quite large with a big bed (king, I think) and would be perfect for a couple. We slept three easily with the addition of the futon couch (which was comfortable and had it's own bedsheets provided!) but it would be tough to sleep four comfortably, in my opinion. The unit was a little smaller than it appeared in the photos but was super clean and could easily accommodate three adults (or four if you didn't might tight sleeping arrangements).
The location is about a $7.00 Uber/Lyft ride from Broadway, which isn't bad, but can add up if you're going in and out of Downtown multiple times a day. There are a bunch of great places to hit up in East Nashville (Bolton's Spicy Chicken, The Crying Wolf bar, to name a few) which are 1.5-2.5 miles away...walkable for some, not for others. The location fit our needs well enough, but just something to keep in mind for your trip!