All I can say is this
1. If I feel drunk it agrees 100% of the time.
2. If I feel like I need to ask because the numbers say so, it says I'm drunk 100% of the time.
3. If I feel fine but have had a couole and want to see what it says.... it says I'm drunk 100% of the time.
4. If I know I'm good bit I had a few after work. 50/50.
5. If I have a pint or less, it's says I'm good to go 100% so far
