My Discus devour them. I have to chop them up into smaller pieces for my smaller Discus 3 to 3 1/2 inch. They seem to accept them much better chopped up.
Overall great food. Every species of fish that I have enjoy this food. Even my farlowella will go for the vibra bites over an algae wafer or equivalent "bottom feeder" food.
I friggin love this food. I don't have a species that doesn't eat it. My Datnoids even go after it. Let me say that again...my Datnoids go after this dry food.
Beyond that, I'm a fan of the price-to-quantity value as well as the packaging. The shape of the bag and zipper closure makes it easy to close and get a good seal on the bag. This helps keep it fresh for longer.
It also lends itself quite well to use in an auto feeder.