Easy to set up and incredibly responsive, the Cielo Breez Plus is one of two Wi-Fi-connected air-conditioner controllers this company manufactures. Like many similar devices we've tested, the simpler (and less-expensive, at a street price of $68) Breez Eco relies entirely on the Cielo Home app. The pricier Breez Plus, reviewed here, has a street price of $109, but it features a display and onboard controls, so you can program a connected air conditioner without needing to pull out your mobile device. The Breez Plus, like all Wi-Fi A/C controllers, enables your generally unconnected window, portable, mini-split, and various other types of air conditioner (or dehumidifier) to be a lot smarter. Not only do you gain more control over your appliance, you also stand to save money by reducing your energy consumption. These controllers operate much like a smart thermostat for a whole-house HVAC system, but they manage a single device in one room.