I'll let somebody else test it before I spend my money on it, if it works though I would buy it though for sure.
I guess the only way to tell if it works would be to test the oil, then send a sample of oil at that same time to get a UOA done and see if it corresponds with what the meter said.
Did that other device signify TBN by the LEDs? I messaged these guys on Kickstarter to see if more data was available and they sai they are working on a "Pro" version that actually will rely the data.