First some questions - Is there a particular reason as to why you are considering changing up? Is there something you are trying to gain or correct with the brand change?

We use nothing but Oceanic here, started with it and have had very good results thus far. Now that being said there are some things to be noted, Oceanic has proven to have a very high calcium level, but at least for us the alkalinity is on the low side so I have to regularly dose baked bakig soda or straight baking soda to maintain levels above 10dKH. Not really an issue I just add it to my top off water.