Gotta say I was pretty set on the trident, as I already have lots of apex stuff. What turns me off towards the trident is more wires, and the device itself is pretty bulky along with need for recalibrating or whatever they say it needs down the road, we need to send it back to Neptune.
The mindstream seems simpler, no waste collecting reservoir, attach it in the sump, done. Get the subscription, nothing else needed.
Oxygen, co2, NH4 are useless to me. Ph, K and the big three are awesome for sps fanatics.
If they added NO3 and PO4 like previously mentioned, this would become the best reef gadget to get.
I am less impulsive with reef products after I got my Apex as soon as it launched in 2016 with tons of defects(I love the apex). I will observe and probably get the mindstream when more is known about it ,possible bugs AND how the company FIXES them.
Also want to know how accurate results are among different units out there.