So as I understand it, the iris hotel is newly renovated and has only been re-opened a week since I used it.
The great: it's a good location, right next to a walmart and 3 cafes within walking distance. The owner is super helpful and responsive, even helping me with a minor room issue the same day. Check-in is a breeze, as the hotel mostly manages itself, which I like. It pushes a simple and modern look, which is nicer than google will lead you to think. It was temp-controlled, and all I needed for my trip, with plenty of easy parking options. And the room had a roku TV!
The not great: This is a hotel, and features basic hotel rooms and ammenities. I think things can keep improving. My worst issues were the room smelling a bit like dried paint when I arrived (coulda done with air fresheners) and the bathroom being absolutly tiny, but not unmanagable.
I appreciate having had the room, and recommend it as an affordable option to visit Nashville.