I like being able to get a larger look at what is in my tank. That said, when I was having some problems with SPS in my tank earlier this year the triton test showed me nothing that was any help in narrowing the cause. But do I think it is worthwhile to do occasionally, if you are curious. People have been posting their results all over so not really in any one place, mostly the chemistry forums on the bigger boards, RC, R2R etc