The right smell can sell a house faster or put a guest quickly at ease. I love my candle collection and my reed diffusers, but investing in a great smart scent diffuser has truly turned me into the host with the most. To that end, I place my Aera diffuser right at the entrance to my apartment, resting on a shoe rack. I got so attached to that relaxing reaction that I got a second Aera diffuser, this time to place in my bedroom. The Aera diffuser can be controlled manually, but the schedules you can set in the app are a game-changer.