Absolute Garbage.
The biggest frustration you'll have is that they have multiple color options and many will seemly reset themselves from whatever you select every time you start your car.
If you NEED gauges to actually monitor your car, HARD PASS.
If you are looking for something to rice out a stock car and you don't care how accurate or reliable they are, they have a wide range of styles, bright colors, and are affordable.
Have there digital boost gauge in my Ranger, no complaints so far. I wouldn't run their wideband but for other gauges I dont see the issue. Automotive gauge technology has been around for years.
I'm considering one of their shift lights as well.