It’s not difficult it’s a bit time consuming. It’s always within .2 of my Hanna Alk Checker. Generally .2 lower than the Hana but you can adjust the reading to match your favorite alk test. I’ve been dosing All-For-Reef via a kamoer and just haven’t switched it over plus I don’t feel the need. Feel like more bad could come from it then good.
No just dosing All-For-Reef. On older tank I had a GHL doser running two part. Worked great.
You shouldn’t trust any of the testers to dose for you. Any of these can fail. Ease of use, probably allkatronic. Both use similar ways of formulating dkh results.