I just spent a week there and it was really nice. Good size (probably 400-500 sq. ft.), nicely decorated, and very clean. All the sheets and towels smelled freshly laundered, and the bed was quite comfortable. Good water pressure in the shower , and the kitchen was well equipped.
The place is about six or seven miles from downtown, if that's where you plan to spend a lot of your time, so one would probably need to have a car. I did go downtown, but I liked the East side much better. And the surrounding neighborhood is super nice with lots of greenery, and perfect for long morning walks. I didn't actually meet Tiffany, but spoke to her on the phone a few times, and she seemed to be very friendly and on the ball.
A few places I found particularly cool in Nashville (and I live in Portland Oregon, which has it's fair share of cool, hip places).
-The Silly Goose on Eastland Ave. - Fantastic food, and a really good value - plus it's right next door to Jeni's ice cream, which is a bonus.
-Mas Tacos - no matter what else you get, and you should get one of everything if possible, do not miss the fried avocado taco - it is ridiculously good.
-Mitchell Deli - right down the road, and very good sandwiches.
-Family Wash - about a mile away - funky little bar/restaurant with a stage for music - really good vibe.
-Barista Parlor - more Portland than Portland - worth getting a coffee just to see how gorgeous the space is.
-Bongo Java in Five Points - outstanding Americano - my personal favorite coffee place I went to.
-Five Points Pizza - good pizza by the slice - very good beer selection - good casual pizza place.
-The Station Inn - super old school place for music - really basic, but feels really authentic, and the bluegrass jam on Sunday nights is fun. The polar opposite of the honky tonk places on Broadway, which seemed super tacky/touristy, and in my opinion, just awful.