Well.. Quickfix 5.7-1 Canadian failed a standard pre employment 5 panel test here in Washington State, June 2013. The instructions were about as basic as it gets. Mixed in the uric acid, heated it up, submitted the sample at 97 degrees and 24 hours later, a call came saying it was "inconsistent with human urine", which turns into a "refusal to test". Obviously the sample was in range, sample was not split, the tech signed off and away the sample went. I did a lot of research on the product and hours of forum reading and felt comfortable going with the QF 5.7-1 after hearing all the success stories. But, apparently, I was wrong and I would caution anyone to NOT to use it. I'm sure some people have passed. I'm sure it'll work with a dip stick drug test (in office) but if they're sending it off to a lab, don't do it. I sampled half a marijuana cookie, just to see what it tasted like. The next day, I get a new job offer and a drug test the following day. With a 80% higher pay rate, I didn't want to risk it. Look at me now.. Working on getting a copy of the MRO results. The lab says I need to get it from the employer or potential employer, I emailed them asking for a copy so we'll see. I've read people want proof with a scan of the MRO so, I'm working on it and will post a link to my drop box as soon as I get it. Bottom line, my advice, don't use it. I feel like an idiot.