I know I'm coming in too late but how long did you marinade it for? 4-5 hours would be good, overnight is best. Without that time, it'll be kind of bland (unless you used a dry rub).
If you're a fish lover it might not appeal to you but if you're a steak guy, then this is as close as you're going to get to steak in a fish.
I tried it this time a bit different, came out well. Marinaded it in louisiana red pepper marinade, covered it in crushed red pepper, powder red pepper and black pepper. nice and spicy.