Digital water monitoring

So, in preparation for a couple big steps into the hobby I would like to get others opinion on digital water parameter testers, for monitoring PH, Mg, K, NO3, NO4 levels, etc, etc. I am preparing to begin dabbling in live corals and tend to be a bit...lets say OCD. Taking cost out of the equation, do you consider digital advances worthwhile, reliable, or accurate? Should I stay with old school testing methods? I have done some research on a few, e.g Seneye (sp?) is very appealing in black and white. I would rather have one very good multi parameter digital tester than many singles. Feel free to key in on any considerations i haven't already asked as well, Thanks