Keny and Sarah's place is absolutely delightful, convenient to Broadway 5-10 min drive away, has a lot of character, overlooks the river from a private balcony, has a (tuned) acoustic guitar hanging in the living room, had a basket of food goodies, has lots of private off-street parking, has a detailed local guidebook by the hosts, and much more. Can't recommend this place enough as a base to look around Nashville; wish we had more time to enjoy it!
One thing to keep in mind - the apartment is on the third level with no elevator, and there are two flights of wide stairs to get to it. No issues for us, and not a big deal at all, just something to be aware of.