Anyone using an Innovate LM-2 A/F ratio datalogger

I've been using one for awhile to get my Holley dialed in.

For the most part, the LM-2 is a decent piece, but I can vouch for the RPM issues. It'll just lose the signal altogether sometimes or will stick at 3000 RPM.

If I were to buy another wideband, I'd go with one of the models that FAST makes.