anybody using Sunpro Tachs?

I have used the super tach II in a few of my vehicles. I never had any concerns with them. I even sold quite a few of them when I was in the parts biz. I never had any complaints. Unless they have changed something in the mfg. of the part, which, given this day & age, anything is possible. The last one I had was ten years ago. Right now I have the Auto-gauge tach in the car now. It was free.