Came to stay at Carmel's for a work trip. Her place is really close to Columbia University. Clean, comfy room on the third floor of a townhouse on a major avenue. Found free street parking. If you park up on Convent Ave, street cleaning is only on Tuesdays and Fridays. Since I was just staying one night, this was perfect! Though you heard street noise during the day, it was super quiet at night and the pillows were really nice. Very close walking distance to a couple of metros with express trains downtown (25 min trip to midtown). Carmel was a very good communicator and answered all my questions quickly. My only complaint was that I wished check-in info was shared upfront (on the app or in an unprompted message). To be fair, it was a last minute reservation, so there wasn't a lot of time in between booking and arrival. But I did wish I didn't need to ask for basic info like how to get in, which room was mine, how to lock my room door, etc. when I was juggling other travel logistics/work meetings.