Came with instructions and was an easy install. Also was a quick delivery. I was able to install the same moment it was delivered. Took me about 5 mins to install. But actually 10 because I didnt read the instructions for the thermostat settings. But other than that, it was quick, easy, and straight forward. Now my room has a consistent temperature that is comfortable. And a much accurate room temperature compared to my PTAC main thermostat.