I've read many reviews of both of those products and they almost always have positive results.
Experimentation is part of the hobby, though. So if you see one you like pick it up and give it a try imo.
My corals seem to respond incredibly well to Nutramar Ova....and both my fish seem to love it as well. It's basically shrimp or lobster eggs. I only recently started using it but I've had some nice results and its small enough that even the smallest zoas in my tank can get some. :)