Yes blue catfish are good for eating and actually in my opinion blue catfish is more delicious than regular catfish is.
Blue Catfish are most commonly caught in the Chesapeake Bay and it's also now being found and served in Washington stores and restaurants.
After eating the blue catfish for the first time I found I love the blue catfish much better than any other regular catfish.
Still the other types of catfish are delicious as well but I love blue catfish now more than I do the regular catfish.
If you've never tried blue catfish you'll likely love it and not really want to eat regular catfish again.
But still I do eat regular catfish when I'm in an area that doesn't have blue catfish.