I love the look of these gauges! Once I figured out which line to tap (the instructions don't help on this part), the installation was fairly simple. If you have the money, I'd buy the circuit taps (add-a-circuit) because I bought my own but they didn't come with fuses and GlowShift doesn't say what size fuse to use. I looked up their circuit expander and it had a 4A fuse. People have had issues with the color not remembering after you shut the car off. I hooked up all four wires as instructed and haven't had a problem. But I've only had it installed one week. I'm using the gauge for troubleshooting so I didn't use a pod. My one complaint would be that there's not enough vacuum line and the line is too soft. It got pinched in my firewall grommet and the gauge didn't work until I found the pinch. They could have supplied two more clamps for the other 2 sides of the tee fitting as well.