Yes, I like and use it.
Easy to play with, you can get pretty creative with it as well.
Works well for folks that run things lean and it gives you back up if you space out and forget to dose if you dose richer levels.
So it works synergistically with EI or rich dosing, as well as a primary source with leaner routines.
However, any sediment that has macro nutrients will last longer if you provide non limiting nutrients to the water column for the most of the time.
Hard to argue with it and the cost is relatively that of Flourite or Eco Complete here in the USA.
Maybe a tad cheaper depending on your shopping skills on line etc.
Looks nice also.
I have several tanks that have been up for several years with fliurite and ADA, one of the EC is the large behemoth.
They all do pretty well wih less dosing needed for the ADA As, but it does even better with it.
Less light also = less demand for nutrients.
Regards,
Tom Barr