I've been using this on my car for the past few weeks and it works great. When left on the windshield, the monitor charges well and I never had to plug it in. The sensors are easy to install and setup took less than 10 minutes. I really like how it shows the temperature of the tires. I ran into a nail last week and the alarm was good and loud. No questions about which tire was too low. The block is smaller than I thought which makes it unobtrusive on the dashboard. I've noticed that it's about 2 pounds short of my gauge, but that doesn't matter.