I received the part in a reasonable time frame. Installation instructions were included which was great and terrible. The instructions and pictures were incredibly small. I needed my glasses and a pair of magnifiers to read them - ridiculous! When installing the new thermostat the screws on the new mounting bracket were too close and I had to make additional holes in the old mounting bracket to secure it. Fortunately I have a metal punch which made the job easy. It would have been a royal pain to make them with a rasp file. In my opinion it is a manufacturing flaw as it would have been much more simple if the redesign accounted for the width of the old mounting bracket and spaced the screws a 1/4 inch further apart to make it much easier for the installing homeowner.