The unit is in a quiet neighborhood and feels pretty safe, no street noise. The bed and the comforter are super comfy and the room was kept at a pleasant temperature.
A few nitpicking downsides - noise insulation inside the house is almost non-existent and unit C can be quite noisy even when the upstair guests are walking and talking normally (though Leo has been very helpful in resolving any issues during quiet hours); the utensils are plastic and there is no stove, so cooking isn't possible; the unit shares the same code as the garage, which feels a little insecure.