Salivary hormone testing

what is everyone’s opinion of salivary opinion testing for testosterone? I read the article from a couple isssues ago and it seems like a cheap and useful test to get done to see where you stand. has anyone out there had it done as of yet? I think i am going to do it.
thanks

If you have any problems with even the tiniest traces of blood in your saliva, it will not work well for you. This can occur from having brushed your teeth or, apparently, from breathing through your mouth while asleep.

If you take samples on 3 different days and
not only the T but also the estrogen levels
are reasonably consistent and within the
normal range, then the test probably worked
fine for you, however.