The Nest Learning Thermostat is always getting better, and with the fourth-generation model, it gets even more impressive.

However, the question remains: How well does it work, and have Google's recent Home app improvements made it easier to use its latest device? Let's dig into the Google Nest Learning Thermostat (4th gen) and see how it compares to the competition.

Google has a brand new 4th-gen Nest Learning Thermostat on sale, but those who have already bought the smart home device are finding the display to be a little too dim at times – something that Google is apparently going to fix.

Owners of the fourth-generation Nest Learning Thermostat are complaining about the brightness of the display. Users have noticed that the thermostat becomes very dim when the room is dark. The brightness can’t be changed by the user, unlike with earlier models.

But is a new design, a couple of new features, and subtle improvements enough for Nest to reclaim its position as lead dog in the smart thermostat pack?