Good. Although the reefbot is getting horrible reviews and no customer service.I saw in a video they are working with the Reef Kinetics on the Reef Bot I think it was. So hopefully we see that.
The Trident seems to be the best one, but I have Apex classic. Im not going to buy another Apex just so I can spent another 500 on the Trident. On top of that, it would probably involve graduate level research just to get it setup.
Maybe they are working on their own Coralvue Tester. That would be perfect.